If is a one-one function

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

Problem

If f(g(x))f(g(x)) is a one-one function, then (1) g(x)g(x) must be one-one. (2) f(x)f(x) must be one-one. (3) f(x)f(x) may not be one-one. (4) g(x)g(x) may not be one-one.

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