Q39 of 58 Page 12

If sets A and B are defined as

a = [ ( x , y ) |y = 1/x , 0 not equal x inr] b = ( x , y ) |y = - x , x inr then

Given:


To find: A ∩ B or A ∪ B



For any element of A ∩ B, A and B will have same value of y



⇒ -x2 = 1


⇒ x2 = -1


Square of any value cannot be negative


Hence, there is no value of x for which A and B will have same value of y


⇒ A ∩ B = ϕ

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