If $f(x)=2 x$ and $g$ is identity function, then

JEE MATHEMATICS MCQ: FUNCTIONS

1 Easy

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Application +4 | -1

f(x)=2 x

and

g

is identity function, then

View answer and explanation

Correct option: C

(f \circ g)(x)=(g+g)(x)

Option D (

(f \circ g)(x)=(g+g)(x)

) is correct because if

f(x) = 2x

and g is the identity function, then both sides of the equation simplify to

2x

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