Q.5  List all the elements of the following sets:

(iii) C = {x : x is an integer, x^{2}\leq 4}

Answers (1)

\left ( -2 \right )^{2}= 4

\left ( -1 \right )^{2}= 1

\left ( 0 \right )^{2}= 0

\left ( 1\right )^{2}= 1

\left ( 2\right )^{2}= 4

Integers whose square is less than or equal to 4 are : -2,-1,0,1,2.

Hence,it can be written as c = {-2,-1,0,1,2}.

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