Question

if x is the reciprocal of y then x+y/x-y is equall to

Answer 1

x is reciprocal of y, so 'x = 1/y'
$\frac{x+y}{x-y} = \frac{ \frac{1}{y} +y}{\frac{1}{y} -y} = \frac{1+y^2}{1-y^2}$

Answer 2

plz check the upload