Listed below are identities for cos 2x and sin 2r: cos 2x = 1 cos x -1 sin'x %3D sin 2r = 2 cos x sin x Write similar identities for cos 3x and sin 3x and then cos 4x and sin 4.x. Use a pattern to predict identities for cos 5x and sin 5x.

Q: a. Solve the linear system: 3х + 2 у = 14 12 x + 13 y + 6z = 40 - 3x + 8 y + 9z = -28 - by the LU…

A: We have to solve the linear system by the LU factorization method.…

Q: Solve the system analytically  3X -5Y plus 3Z equals negative 14  3X -2Y -5Z equals negative 17  X…

A: Given: -

Q: evaluate and explain  tan(-14pi/3)

A:

Q: 6) Solve the following system of equation. X-2Y+3Z = 9 -X+2Y %3D = -4 %3D 2X-5Y +5Z = 17 %3D

A: Given equation is : X-2Y+3Z=9      .....1-X+2Y=-4       ......22X-5Y+5Z=17    .....3 To find the…

Q: Solve each system by substitution

A: Given,  The system of equation  x+7y = 0  2x-8y = 22    We have to solve by substitution.

Q: 21) 0 = -2y + 10 – 6x 14 – 22 y = 18x

A:

Q: 23) -16 + 20х -8у%3D0 36 %3D-18у - 22х

A:

Q: 15) 8x – 6y =-20 -16x + 7 y= 30

A: we will express one variable in terms of other and then substitute that variable in second equation…

Q: 2y 4y2 + 3y 6

A: solution:⇒2y3+4y2+3y+6=0⇒2y2y+2+3y+2=0⇒(y+2)(2y2+3)=0⇒(y+2)=0 or (2y2+3)=0⇒y=-2 or 2y2=-3⇒y=-2 or…

Q: 17) -8x – 10y= 24 6x + 5 y = 2

A: The given equation need to be solved by Substitution method. In this method, the value of one…

Q: 13) -7х + 4y%324 4х - 4y%3D0

A: We have to find x and y

Q: Exercise (b) Write a formula that gives the amount of protein in a mixture of a pounds of alfalfa…

A: 25 pounds of alfalfa and 40 pounds of wheat mids, we have to find how many pounds of protein are in…

Q: 19) -4y – 11x= 36 20 = -10x – 10 y

A: Given equations are -4y-11x=36 20=-10x-10y solve the equations

Q: Зх + 2у %3D 4 4x + Зу %3D 7

A:

Q: 20. A total of 800 pre-sale tickets and tickets at the gate were sold to the football city…

A: From the given information, x = the number of presale tickets sold. y = the number of tickets sold…

Q: 18) -24 – 8x = 12y 7 1+-y =- 18 5

A: We will find the value of x and y using substitution.

Q: 1) y= 4x- 12 y =-8x

A:

Q: 21 -8- + 2r3 2r3 3 -4 3r + 6r2

A: Given 2 x1 - 6 x3 = -8 x2 + 2 x3 = 3 3 x1 + 6 x2 - 2 x3 = - 4  Now we will write given information…

Q: 16) 6х — 12у %3D24 -x- 6y = 4

A: We will substitute the value of x obtained from the second equation in terms of y in first equation.

Q: What is the first step in solving the following system of equations by substitution? y=2x x+y=9

A:

Q: Solve the following system of equations.   y = √x x2 + y2 = 72 can you help me with this?

A:

Q: 1. Symbolize each problem as an equation (or a system) but do not solve it. (a). A chem lab stores…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 11. Solve the following system of equations 2x - 3 = 4 and 4x + 5 = 1

A: Given system of equations are: 2x-3y=4 4x+5y=1

Q: 4х - у%3D20 -2х - 2у%3D 10

A:

Q: Problem #8: 2 0 3 4 1 1 1 0 6 -2 0 What variables are currently in the solution? Enter the answer by…

A: In the context of the given tableau for the simplex algorithm, we have to determine which variables…