EBK ALGEBRA FOUNDATIONS
15th Edition
ISBN: 9780321978929
Author: Martin-Gay
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 20.1, Problem 89ES
To determine
The solution of the error in the parabola equation.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Answers
*************
*********************************
Q.1) Classify the following statements as a true or false statements:
a. If M is a module, then every proper submodule of M is contained in a maximal
submodule of M.
b. The sum of a finite family of small submodules of a module M is small in M.
c. Zz is directly indecomposable.
d. An epimorphism a: M→ N is called solit iff Ker(a) is a direct summand in M.
e. The Z-module has two composition series.
Z
6Z
f. Zz does not have a composition series.
g. Any finitely generated module is a free module.
h. If O→A MW→ 0 is short exact sequence then f is epimorphism.
i. If f is a homomorphism then f-1 is also a homomorphism.
Maximal C≤A if and only if is simple.
Sup
Q.4) Give an example and explain your claim in each case:
Monomorphism not split.
b) A finite free module.
c) Semisimple module.
d) A small submodule A of a module N and a homomorphism op: MN, but
(A) is not small in M.
I need diagram with solutions
Chapter 20 Solutions
EBK ALGEBRA FOUNDATIONS
Ch. 20.1 - Use the choices below to fill in each blank. Some...Ch. 20.1 - Prob. 2VRVCCh. 20.1 - Prob. 3VRVCCh. 20.1 - Prob. 4VRVCCh. 20.1 - Prob. 5VRVCCh. 20.1 - Prob. 6VRVCCh. 20.1 - Prob. 1ESCh. 20.1 - Prob. 2ESCh. 20.1 - Prob. 3ESCh. 20.1 - Prob. 4ES
Ch. 20.1 - Prob. 5ESCh. 20.1 - Prob. 6ESCh. 20.1 - Prob. 7ESCh. 20.1 - Prob. 8ESCh. 20.1 - Prob. 9ESCh. 20.1 - Prob. 10ESCh. 20.1 - Prob. 11ESCh. 20.1 - Prob. 12ESCh. 20.1 - Prob. 13ESCh. 20.1 - Prob. 14ESCh. 20.1 - Prob. 15ESCh. 20.1 - Prob. 16ESCh. 20.1 - Prob. 17ESCh. 20.1 - Prob. 18ESCh. 20.1 - Prob. 19ESCh. 20.1 - Prob. 20ESCh. 20.1 - Prob. 21ESCh. 20.1 - Prob. 22ESCh. 20.1 - Prob. 23ESCh. 20.1 - Prob. 24ESCh. 20.1 - Prob. 25ESCh. 20.1 - Prob. 26ESCh. 20.1 - Prob. 27ESCh. 20.1 - Prob. 28ESCh. 20.1 - Prob. 29ESCh. 20.1 - Prob. 30ESCh. 20.1 - Prob. 31ESCh. 20.1 - Prob. 32ESCh. 20.1 - Prob. 33ESCh. 20.1 - Prob. 34ESCh. 20.1 - Prob. 35ESCh. 20.1 - Prob. 36ESCh. 20.1 - Prob. 37ESCh. 20.1 - Prob. 38ESCh. 20.1 - Prob. 39ESCh. 20.1 - Prob. 40ESCh. 20.1 - Prob. 41ESCh. 20.1 - Prob. 42ESCh. 20.1 - Objective D Write an equation of the circle with...Ch. 20.1 - Objective D Write an equation of the circle with...Ch. 20.1 - Prob. 45ESCh. 20.1 - Prob. 46ESCh. 20.1 - Prob. 47ESCh. 20.1 - Prob. 48ESCh. 20.1 - Prob. 49ESCh. 20.1 - Prob. 50ESCh. 20.1 - Prob. 51ESCh. 20.1 - Prob. 52ESCh. 20.1 - Prob. 53ESCh. 20.1 - Prob. 54ESCh. 20.1 - Prob. 55ESCh. 20.1 - Prob. 56ESCh. 20.1 - Prob. 57ESCh. 20.1 - Prob. 58ESCh. 20.1 - Prob. 59ESCh. 20.1 - Prob. 60ESCh. 20.1 - Prob. 61ESCh. 20.1 - Prob. 62ESCh. 20.1 - Prob. 63ESCh. 20.1 - Prob. 64ESCh. 20.1 - Prob. 65ESCh. 20.1 - Prob. 66ESCh. 20.1 - Prob. 67ESCh. 20.1 - Prob. 68ESCh. 20.1 - Prob. 69ESCh. 20.1 - Prob. 70ESCh. 20.1 - Prob. 71ESCh. 20.1 - Prob. 72ESCh. 20.1 - Objectives A B C D Mixed Practice Sketch the graph...Ch. 20.1 - Prob. 74ESCh. 20.1 - Prob. 75ESCh. 20.1 - Objectives A B C D Mixed Practice Sketch the graph...Ch. 20.1 - Prob. 77ESCh. 20.1 - Prob. 78ESCh. 20.1 - Prob. 79ESCh. 20.1 - Prob. 80ESCh. 20.1 - Prob. 81ESCh. 20.1 - Prob. 82ESCh. 20.1 - Prob. 83ESCh. 20.1 - Prob. 84ESCh. 20.1 - Prob. 85ESCh. 20.1 - Prob. 86ESCh. 20.1 - Prob. 87ESCh. 20.1 - Prob. 88ESCh. 20.1 - Prob. 89ESCh. 20.1 - Prob. 90ESCh. 20.1 - The Sarsen Circle first image that comes to mind...Ch. 20.1 - One of the largest observation wheels in the world...Ch. 20.1 - In 1893, Pittsburgh bridge builder George Ferris...Ch. 20.1 - Prob. 94ESCh. 20.1 - Prob. 95ESCh. 20.1 - Prob. 96ESCh. 20.1 - Prob. 97ESCh. 20.1 - Prob. 98ESCh. 20.1 - Use a graphing calculator to verify each exercise....Ch. 20.1 - Prob. 100ESCh. 20.1 - Prob. 101ESCh. 20.1 - Use a graphing calculator to verify each exercise....Ch. 20.2 - Prob. 1VRVCCh. 20.2 - Prob. 2VRVCCh. 20.2 - Prob. 3VRVCCh. 20.2 - Use the choices below to fill in each blank. Some...Ch. 20.2 - Prob. 5VRVCCh. 20.2 - Prob. 6VRVCCh. 20.2 - Prob. 1ESCh. 20.2 - Prob. 2ESCh. 20.2 - Prob. 3ESCh. 20.2 - Prob. 4ESCh. 20.2 - Prob. 5ESCh. 20.2 - Prob. 6ESCh. 20.2 - Prob. 7ESCh. 20.2 - Prob. 8ESCh. 20.2 - Prob. 9ESCh. 20.2 - Prob. 10ESCh. 20.2 - Prob. 11ESCh. 20.2 - Prob. 12ESCh. 20.2 - Prob. 13ESCh. 20.2 - Prob. 14ESCh. 20.2 - Prob. 15ESCh. 20.2 - Prob. 16ESCh. 20.2 - Prob. 17ESCh. 20.2 - Prob. 18ESCh. 20.2 - Prob. 19ESCh. 20.2 - Prob. 20ESCh. 20.2 - Prob. 21ESCh. 20.2 - Prob. 22ESCh. 20.2 - Prob. 23ESCh. 20.2 - Prob. 24ESCh. 20.2 - Prob. 25ESCh. 20.2 - Prob. 26ESCh. 20.2 - Prob. 27ESCh. 20.2 - Prob. 28ESCh. 20.2 - Prob. 29ESCh. 20.2 - Prob. 30ESCh. 20.2 - Prob. 31ESCh. 20.2 - Prob. 32ESCh. 20.2 - Prob. 33ESCh. 20.2 - Prob. 34ESCh. 20.2 - Prob. 35ESCh. 20.2 - Prob. 36ESCh. 20.2 - Prob. 37ESCh. 20.2 - Prob. 38ESCh. 20.2 - Prob. 39ESCh. 20.2 - Prob. 40ESCh. 20.2 - Prob. 41ESCh. 20.2 - Prob. 42ESCh. 20.2 - Prob. 43ESCh. 20.2 - Prob. 44ESCh. 20.2 - Prob. 45ESCh. 20.2 - Prob. 46ESCh. 20.2 - Prob. 47ESCh. 20.2 - Prob. 48ESCh. 20.2 - Prob. 49ESCh. 20.2 - Prob. 50ESCh. 20.2 - Prob. 51ESCh. 20.2 - Prob. 52ESCh. 20.2 - Prob. 53ESCh. 20.2 - Prob. 54ESCh. 20.2 - Prob. 55ESCh. 20.2 - Prob. 56ESCh. 20.2 - Prob. 57ESCh. 20.2 - Prob. 58ESCh. 20.2 - If you are given a list of equations of circles,...Ch. 20.2 - Prob. 60ESCh. 20.2 - Prob. 61ESCh. 20.2 - Prob. 62ESCh. 20.2 - Prob. 63ESCh. 20.2 - Prob. 64ESCh. 20.2 - Prob. 65ESCh. 20.2 - What do yo notice about the values of e for the...Ch. 20.2 - Prob. 67ESCh. 20.2 - What do yo notice about the values of e for the...Ch. 20.2 - Prob. 69ESCh. 20.2 - Prob. 70ESCh. 20.2 - Prob. 71ESCh. 20.2 - Prob. 72ESCh. 20.2 - Prob. 73ESCh. 20.2 - Prob. 74ESCh. 20.2 - Prob. 75ESCh. 20.2 - Prob. 76ESCh. 20.2 - Prob. 77ESCh. 20.2 - Prob. 78ESCh. 20.2 - Prob. 79ESCh. 20.2 - Prob. 80ESCh. 20.3 - Prob. 1ESCh. 20.3 - Prob. 2ESCh. 20.3 - Prob. 3ESCh. 20.3 - Prob. 4ESCh. 20.3 - Prob. 5ESCh. 20.3 - Prob. 6ESCh. 20.3 - Prob. 7ESCh. 20.3 - Prob. 8ESCh. 20.3 - Prob. 9ESCh. 20.3 - Prob. 10ESCh. 20.3 - Prob. 11ESCh. 20.3 - Prob. 12ESCh. 20.3 - Prob. 13ESCh. 20.3 - Prob. 14ESCh. 20.3 - Prob. 15ESCh. 20.3 - Prob. 16ESCh. 20.3 - Objectives A B Mixed Practice Solve each nonlinear...Ch. 20.3 - Prob. 18ESCh. 20.3 - Prob. 19ESCh. 20.3 - Prob. 20ESCh. 20.3 - Prob. 21ESCh. 20.3 - Prob. 22ESCh. 20.3 - Prob. 23ESCh. 20.3 - Prob. 24ESCh. 20.3 - Prob. 25ESCh. 20.3 - Prob. 26ESCh. 20.3 - Prob. 27ESCh. 20.3 - Prob. 28ESCh. 20.3 - Prob. 29ESCh. 20.3 - Prob. 30ESCh. 20.3 - Prob. 31ESCh. 20.3 - Prob. 32ESCh. 20.3 - Prob. 33ESCh. 20.3 - Prob. 34ESCh. 20.3 - Prob. 35ESCh. 20.3 - Prob. 36ESCh. 20.3 - Prob. 37ESCh. 20.3 - Prob. 38ESCh. 20.3 - Prob. 39ESCh. 20.3 - Prob. 40ESCh. 20.3 - Prob. 41ESCh. 20.3 - Prob. 42ESCh. 20.3 - Prob. 43ESCh. 20.3 - Prob. 44ESCh. 20.3 - Prob. 45ESCh. 20.3 - Prob. 46ESCh. 20.3 - Prob. 47ESCh. 20.3 - Prob. 48ESCh. 20.3 - Prob. 49ESCh. 20.3 - Prob. 50ESCh. 20.3 - Prob. 51ESCh. 20.3 - Prob. 52ESCh. 20.3 - Prob. 53ESCh. 20.3 - Prob. 54ESCh. 20.4 - Prob. 1ESCh. 20.4 - Prob. 2ESCh. 20.4 - Prob. 3ESCh. 20.4 - Prob. 4ESCh. 20.4 - Prob. 5ESCh. 20.4 - Prob. 6ESCh. 20.4 - Prob. 7ESCh. 20.4 - Prob. 8ESCh. 20.4 - Prob. 9ESCh. 20.4 - Prob. 10ESCh. 20.4 - Prob. 11ESCh. 20.4 - Prob. 12ESCh. 20.4 - Prob. 13ESCh. 20.4 - Prob. 14ESCh. 20.4 - Prob. 15ESCh. 20.4 - Prob. 16ESCh. 20.4 - Prob. 17ESCh. 20.4 - Prob. 18ESCh. 20.4 - Prob. 19ESCh. 20.4 - Prob. 20ESCh. 20.4 - Prob. 21ESCh. 20.4 - Prob. 22ESCh. 20.4 - Prob. 23ESCh. 20.4 - Prob. 24ESCh. 20.4 - Prob. 25ESCh. 20.4 - Prob. 26ESCh. 20.4 - Prob. 27ESCh. 20.4 - Prob. 28ESCh. 20.4 - Prob. 29ESCh. 20.4 - Prob. 30ESCh. 20.4 - Prob. 31ESCh. 20.4 - Prob. 32ESCh. 20.4 - Prob. 33ESCh. 20.4 - Prob. 34ESCh. 20.4 - Prob. 35ESCh. 20.4 - Prob. 36ESCh. 20.4 - Prob. 37ESCh. 20.4 - Prob. 38ESCh. 20.4 - Prob. 39ESCh. 20.4 - Prob. 40ESCh. 20.4 - Prob. 41ESCh. 20.4 - Prob. 42ESCh. 20.4 - Prob. 43ESCh. 20.4 - Prob. 44ESCh. 20.4 - Prob. 45ESCh. 20.4 - Prob. 46ESCh. 20.4 - Prob. 47ESCh. 20.4 - Prob. 48ESCh. 20 - Prob. 1IRCh. 20 - Prob. 2IRCh. 20 - Prob. 3IRCh. 20 - Prob. 4IRCh. 20 - Prob. 5IRCh. 20 - Prob. 6IRCh. 20 - Prob. 7IRCh. 20 - Prob. 8IRCh. 20 - Prob. 9IRCh. 20 - Prob. 10IRCh. 20 - Prob. 11IRCh. 20 - Prob. 12IRCh. 20 - Prob. 13IRCh. 20 - Prob. 14IRCh. 20 - Prob. 15IRCh. 20 - Prob. 1VCCh. 20 - Prob. 2VCCh. 20 - Prob. 3VCCh. 20 - Prob. 4VCCh. 20 - Prob. 5VCCh. 20 - Fill in each blank with one of the words or...Ch. 20 - Fill in each blank with one of the words or...Ch. 20 - Fill in each blank with one of the words or...Ch. 20 - Prob. 1RCh. 20 - Prob. 2RCh. 20 - Prob. 3RCh. 20 - Prob. 4RCh. 20 - Prob. 5RCh. 20 - Prob. 6RCh. 20 - Prob. 7RCh. 20 - Prob. 8RCh. 20 - Prob. 9RCh. 20 - Prob. 10RCh. 20 - Sketch the graph of the equation. If the graph is...Ch. 20 - Prob. 12RCh. 20 - Prob. 13RCh. 20 - Prob. 14RCh. 20 - Prob. 15RCh. 20 - Prob. 16RCh. 20 - Prob. 17RCh. 20 - Prob. 18RCh. 20 - Prob. 19RCh. 20 - Prob. 20RCh. 20 - Prob. 21RCh. 20 - Prob. 22RCh. 20 - Prob. 23RCh. 20 - Prob. 24RCh. 20 - Prob. 25RCh. 20 - Graph each equation. 26. y=x2+4x+6Ch. 20 - Prob. 27RCh. 20 - Prob. 28RCh. 20 - Prob. 29RCh. 20 - Prob. 30RCh. 20 - Prob. 31RCh. 20 - Prob. 32RCh. 20 - Solve each system of equations. 33. {y=2x4y2=4xCh. 20 - Prob. 34RCh. 20 - Prob. 35RCh. 20 - Prob. 36RCh. 20 - Prob. 37RCh. 20 - Prob. 38RCh. 20 - Prob. 39RCh. 20 - Prob. 40RCh. 20 - Prob. 41RCh. 20 - What is the greatest number of real number...Ch. 20 - Prob. 43RCh. 20 - Prob. 44RCh. 20 - Graph each inequality or system of inequalities....Ch. 20 - Prob. 46RCh. 20 - Prob. 47RCh. 20 - Prob. 48RCh. 20 - Prob. 49RCh. 20 - Prob. 50RCh. 20 - Prob. 51RCh. 20 - Prob. 52RCh. 20 - Prob. 53RCh. 20 - Graph each equation. 54. y24x216=1Ch. 20 - Prob. 55RCh. 20 - Graph each equation. 56. (x2)24+(y1)2=1Ch. 20 - Prob. 57RCh. 20 - Graph each equation. 58. y2+(x2)2=10Ch. 20 - Prob. 59RCh. 20 - Prob. 60RCh. 20 - Prob. 61RCh. 20 - Prob. 62RCh. 20 - Prob. 63RCh. 20 - Graph each inequality or system of inequalities....Ch. 20 - Graph each inequality or system of inequalities....Ch. 20 - Prob. 66RCh. 20 - Prob. 1TCh. 20 - Prob. 2TCh. 20 - Prob. 3TCh. 20 - Prob. 4TCh. 20 - Prob. 5TCh. 20 - Prob. 6TCh. 20 - Prob. 7TCh. 20 - Prob. 8TCh. 20 - Prob. 9TCh. 20 - Prob. 10TCh. 20 - Prob. 11TCh. 20 - Prob. 12TCh. 20 - Graph each system. 13. {2x+5y10yx2+1Ch. 20 - Graph each system. 14. { x 24+y21x+y1Ch. 20 - Graph each system. 15. {x2+y21 x 24y21Ch. 20 - Graph each system. 16. {x2+y24x2+y216y0Ch. 20 - Prob. 17TCh. 20 - Prob. 18TCh. 20 - Prob. 1CRCh. 20 - Prob. 2CRCh. 20 - Solve 5x310 or x+15.Ch. 20 - Prob. 4CRCh. 20 - Prob. 5CRCh. 20 - Prob. 6CRCh. 20 - Prob. 7CRCh. 20 - Prob. 8CRCh. 20 - Prob. 9CRCh. 20 - Prob. 10CRCh. 20 - Prob. 11CRCh. 20 - Prob. 12CRCh. 20 - Prob. 13CRCh. 20 - Prob. 14CRCh. 20 - Prob. 15CRCh. 20 - Prob. 16CRCh. 20 - Prob. 17CRCh. 20 - Prob. 18CRCh. 20 - Prob. 19CRCh. 20 - Prob. 20CRCh. 20 - Prob. 21CRCh. 20 - Prob. 22CRCh. 20 - Prob. 23CRCh. 20 - Prob. 24CRCh. 20 - Prob. 25CRCh. 20 - Use the discriminant to determine the number and...Ch. 20 - Prob. 27CRCh. 20 - Prob. 28CRCh. 20 - Prob. 29CRCh. 20 - Prob. 30CRCh. 20 - Prob. 31CRCh. 20 - Graph f(x)=(x+2)21 .Ch. 20 - Prob. 33CRCh. 20 - Prob. 34CRCh. 20 - Prob. 35CRCh. 20 - Find the inverse of f(x)=x+12Ch. 20 - Prob. 37CRCh. 20 - Prob. 38CRCh. 20 - Prob. 39CRCh. 20 - Graph 4x2+9y2=36.Ch. 20 - Prob. 41CRCh. 20 - Prob. 42CRCh. 20 - Prob. 43CRCh. 20 - Prob. 44CRCh. 20 - Prob. 45CRCh. 20 - Prob. 46CR
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.Similar questions
- T. Determine the least common denominator and the domain for the 2x-3 10 problem: + x²+6x+8 x²+x-12 3 2x 2. Add: + Simplify and 5x+10 x²-2x-8 state the domain. 7 3. Add/Subtract: x+2 1 + x+6 2x+2 4 Simplify and state the domain. x+1 4 4. Subtract: - Simplify 3x-3 x²-3x+2 and state the domain. 1 15 3x-5 5. Add/Subtract: + 2 2x-14 x²-7x Simplify and state the domain.arrow_forwardQ.1) Classify the following statements as a true or false statements: Q a. A simple ring R is simple as a right R-module. b. Every ideal of ZZ is small ideal. very den to is lovaginz c. A nontrivial direct summand of a module cannot be large or small submodule. d. The sum of a finite family of small submodules of a module M is small in M. e. The direct product of a finite family of projective modules is projective f. The sum of a finite family of large submodules of a module M is large in M. g. Zz contains no minimal submodules. h. Qz has no minimal and no maximal submodules. i. Every divisible Z-module is injective. j. Every projective module is a free module. a homomorp cements Q.4) Give an example and explain your claim in each case: a) A module M which has a largest proper submodule, is directly indecomposable. b) A free subset of a module. c) A finite free module. d) A module contains no a direct summand. e) A short split exact sequence of modules.arrow_forwardListen ANALYZING RELATIONSHIPS Describe the x-values for which (a) f is increasing or decreasing, (b) f(x) > 0 and (c) f(x) <0. y Af -2 1 2 4x a. The function is increasing when and decreasing whenarrow_forwardBy forming the augmented matrix corresponding to this system of equations and usingGaussian elimination, find the values of t and u that imply the system:(i) is inconsistent.(ii) has infinitely many solutions.(iii) has a unique solutiona=2 b=1arrow_forwardif a=2 and b=1 1) Calculate 49(B-1)2+7B−1AT+7ATB−1+(AT)2 2)Find a matrix C such that (B − 2C)-1=A 3) Find a non-diagonal matrix E ̸= B such that det(AB) = det(AE)arrow_forwardWrite the equation line shown on the graph in slope, intercept form.arrow_forward1.2.15. (!) Let W be a closed walk of length at least 1 that does not contain a cycle. Prove that some edge of W repeats immediately (once in each direction).arrow_forward1.2.18. (!) Let G be the graph whose vertex set is the set of k-tuples with elements in (0, 1), with x adjacent to y if x and y differ in exactly two positions. Determine the number of components of G.arrow_forward1.2.17. (!) Let G,, be the graph whose vertices are the permutations of (1,..., n}, with two permutations a₁, ..., a,, and b₁, ..., b, adjacent if they differ by interchanging a pair of adjacent entries (G3 shown below). Prove that G,, is connected. 132 123 213 312 321 231arrow_forward1.2.19. Let and s be natural numbers. Let G be the simple graph with vertex set Vo... V„−1 such that v; ↔ v; if and only if |ji| Є (r,s). Prove that S has exactly k components, where k is the greatest common divisor of {n, r,s}.arrow_forward1.2.20. (!) Let u be a cut-vertex of a simple graph G. Prove that G - v is connected. עarrow_forward1.2.12. (-) Convert the proof at 1.2.32 to an procedure for finding an Eulerian circuit in a connected even graph.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell
College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Algebra: Structure And Method, Book 1
Algebra
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:McDougal Littell
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
Interpreting Graphs of Quadratic Equations (GMAT/GRE/CAT/Bank PO/SSC CGL) | Don't Memorise; Author: Don't Memorise;https://www.youtube.com/watch?v=BHgewRcuoRM;License: Standard YouTube License, CC-BY
Solve a Trig Equation in Quadratic Form Using the Quadratic Formula (Cosine, 4 Solutions); Author: Mathispower4u;https://www.youtube.com/watch?v=N6jw_i74AVQ;License: Standard YouTube License, CC-BY