Which of the following is equal to this ->

Problem -> http://i56.tinypic.com/2e65zzq.jpg

Which answer is correct? -> http://i55.tinypic.com/255svuf.jpg

Person to help gets Best Answer. Thanks :D

option A is right,

for your question is (1+(1/x)) / (1-(1/x))

multiply by x / x (which means multiply by 1, won't make any change to equation)

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

= (x + 1 ) / (x - 1)

[1+ (1/x)] / [1-(1/x)] --> let's make all terms have the same denominator

[(x/x) + (1/x)] / [(x/x) - (1/x)] --> x/x is also 1

[(x+1)/x] / [(x-1)/x] --> add the numerators then copy the denominator

[(x+1)/x] * [x/(x-1)] --> reciprocate (x-1)/x then multiply to (x+1)/x instead of divide

(x+1)/(x-1) -->A

A.

Get a common denominator then multiply by the reciprocal.