Question

The multiplicative inverse of (x +1) + 1/(x-1)
(A) 1/(x+1)+(x-1)
(B) (x - 1)-1/(x-1)
(C) x-1/x^2
(D) x+1/x^2
​

Answer 1

right answer is option A

Answer 2

I guess,

The multiplicative inverse of

(x+1)+1/(x+1) is...

(x+1)+1 (x-1)-1

-------------- = ------------

(x+1) (x-1)