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Question

Question: If f(g(x)) = \|sinx\|and g(f(x)) = sin<sup>2</sup>\(\sqrt{x}\)then...

If f(g(x)) = |sinx|and g(f(x)) = sin2x\sqrt{x}then

A

f(x) = x\sqrt{x}, g(x) = sin2x

B

f(x) = sinx\sqrt{x}, g(x) = x2

C

f(x) = sinx\sqrt{\sin x}, g(x) = x2

D

f(x) = |x|, g(x) = sin2x

Answer

f(x) = x\sqrt{x}, g(x) = sin2x

Explanation

Solution

Clearly f(x) = , g(x) = sin2x satisfies both conditions.