Q. 1 E3.7( 6 Votes )

# State in each case whether A ⊂ B or A ⊄ B.

A = {x : x is an even natural number,}, B = {x : x is an integer}

Answer :

A ⊂ B

Explanation: we have, A = {2,4,6,8,...} and B = {. . ., –3, –2, –1, 0, 1, 2, 3, . . .}. since, even natural numbers are also integers, we observe that elements of A belongs to B.

Thus , A ⊂ B.

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(i) A = (–2, 3)

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(iv) D = (4, 9]

(v) E = [–10, 0)

(vi) F = (0, 5]

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Let sets R and T be defined as

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