Question

Please give me the answer.

Answer 1

Hey this is your answer dear

= (1/x - 1/y) + 1/x²
= (1/-2 - 1/7) + 1/-2²
=(-7-2 / 14) + 1/4
= -9/14 + 1/4
= -18+7 / 28
= -11/28------------Answer

Answer 2

=> (1/x-1/y)+1/x^2

Now put the given Value,

=> (-1/2-1/7)+(-1/2^2)

=> (-7-2/14)-1/4

=> -9/14-1/4

=> -18-7/28

=> -25/28

Be Brainly