We have learned how to simplify, add, subtract, multiply, and divide rational expressions. The procedure for each operation is different, and it takes considerable practice to determine the correct method to apply for a given problem. The following review exercises give you the opportunity to practice the specific techniques for simplifying rational expressions. For Exercises 1–20, perform any indicated operations, and simplify the expression. c 2 + 5 c + 6 c 2 + c − 2 ÷ c c − 1
We have learned how to simplify, add, subtract, multiply, and divide rational expressions. The procedure for each operation is different, and it takes considerable practice to determine the correct method to apply for a given problem. The following review exercises give you the opportunity to practice the specific techniques for simplifying rational expressions. For Exercises 1–20, perform any indicated operations, and simplify the expression. c 2 + 5 c + 6 c 2 + c − 2 ÷ c c − 1
Solution Summary: The author explains how to calculate the simplified form of the expression, c2+5c+6
We have learned how to simplify, add, subtract, multiply, and divide rational expressions. The procedure for each operation is different, and it takes considerable practice to determine the correct method to apply for a given problem. The following review exercises give you the opportunity to practice the specific techniques for simplifying rational expressions.
For Exercises 1–20, perform any indicated operations, and simplify the expression.
Q1lal Let X be an arbitrary infinite set and let r the family of all subsets
F of X which do not contain a particular point x, EX and the
complements F of all finite subsets F of X show that (X.r) is a topology.
bl The nbhd system N(x) at x in a topological space X has the following
properties
NO- N(x) for any xX
N1- If N EN(x) then x€N
N2- If NEN(x), NCM then MeN(x)
N3- If NEN(x), MEN(x) then NOMEN(x)
N4- If N = N(x) then 3M = N(x) such that MCN then MeN(y) for any
уем
Show that there exist a unique topology τ on X.
Q2\a\let (X,r) be the topology space and BST show that ẞ is base for a
topology on X iff for any G open set xEG then there exist A Eẞ such
that x E ACG.
b\Let ẞ is a collection of open sets in X show that is base for a
topology on X iff for each xex the collection B, (BEB\xEB) is is a
nbhd base at x.
-
Q31 Choose only two:
al Let A be a subspace of a space X show that FCA is closed iff
F KOA, K is closed set in X.
الرياضيات
b\ Let X and Y be two topological space and f:X -…
Q1\ Let X be a topological space and let Int be the interior
operation defined on P(X) such that
1₁.Int(X) = X
12. Int (A) CA for each A = P(X)
13. Int (int (A) = Int (A) for each A = P(X)
14. Int (An B) = Int(A) n Int (B) for each A, B = P(X)
15. A is open iff Int (A) = A
Show that there exist a unique topology T on X.
Q2\ Let X be a topological space and suppose that a nbhd
base has been fixed at each x E X and A SCX show that A open
iff A contains a basic nbdh of each its point
Q3\ Let X be a topological space and and A CX show that A
closed set iff every limit point of A is in A.
A'S A
ACA
Q4\ If ẞ is a collection of open sets in X show that ẞ is a base
for a topology on X iff for each x E X then ẞx = {BE B|x E B}
is a nbhd base at x.
Q5\ If A subspace of a topological space X, if x Є A show
that V is nbhd of x in A iff V = Un A where U is nbdh of x in
X.
+
Theorem: Let be a function from a topological
space (X,T) on to a non-empty set y then
is a quotient map iff
vesy if f(B) is closed in X then & is
>Y. ie Bclosed in
bp
closed in the quotient topology induced by f
iff (B) is closed in x-
التاريخ
Acy
الموضوع :
Theorem:- IP & and I are topological space
and fix sy is continuous
او
function and either
open or closed then the topology Cony is the
quatient topology p
proof:
Theorem: Lety have the quotient topology
induced by map f of X onto y.
The-x:
then an arbirary map g:y 7 is continuous
7.
iff gof: x > z is
"g of continuous
Continuous function
f
University Calculus: Early Transcendentals (4th Edition)
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