1.

If (x+1)/(x-1)=a/band (1-y)/(1+y)=b/a, then thevalue of (x-y)/(1+x y)is(2a b)/(a^2-b^2)(b) (a^2-b^2)/(2a b)(c) (a^2+b^2)/(2a b)(d) (a^2-b^2\ )/(a b)

Answer»

`(2AB)/(a^(2)-B^(2))`
`(a^(2)-b^(2))/(2ab)`
`(a^(2)+b^(2))/(a^(2)-b^(2))`
`(a^(2)-b^(2))/(a^(2)+b^(2))`

ANSWER :C


Discussion

No Comment Found

Related InterviewSolutions