Question

C)
3) If the reciprocal of (x+1) is (x-1),
what is the value of x?​

Answer 1

Answer:

√2.

Step-by-step explanation:

Lovely question actually...

Answer 2

$\frac{1}{x + 1} = x - 1 ,(x - 1)( x+ 1) = 1$

${x}^{2} - 1 = 1, {x}^{2} = 1 + 1 = 2 , x = \sqrt{2}$