Electrical and Electronic Engineering

Electrical and Electronic EngineeringGeneral AptitudeMultiple Choice (MCQ)1 Mark
Q13.

If, for non-zero real variables x,yx, y, and real parameter a>1a > 1, x:y=(a+1):(a1),x : y = (a + 1) : (a - 1),

then, the ratio (x2y2):(x2+y2)(x^2 - y^2) : (x^2 + y^2) is

A
2a:(a2+1)2a : (a^2 + 1)
B
a:(a2+1)a : (a^2 + 1)
C
2a:(a21)2a : (a^2 - 1)
D
a:(a21)a : (a^2 - 1)