If , then is equal…

MATHEMATICS · Single correct · CBSE · Mathematics · Relations and Functions · Relations and Functions

Problem

If y=f(x)=ax+bcx−ay=f(x)=\frac{ax+b}{cx-a}, then xx is equal to: (1) 1f(x)\frac{1}{f(x)} (2) 1f(y)\frac{1}{f(y)} (3) yf(x)yf(x) (4) f(y)f(y)

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