If f: R R is defined by f(x) = x + x, then f(f(x)) is: Option 1: 2 x + 2x Option 2: ^2 x + x^2 Option 3: ( x + x) + x + x Option 4: ^2 x + 2 x + x

The answer is '( x + x) + x + x'. View full solution:

CUET Mathematics - If f: R R is defined by f(x) = x + x, then f(f(x)) is: | PYQs + Solutions

CUET Mathematics 2022 25 May Shift 1

Algebra

Easy

$2\sin x + 2x$

$\sin^2 x + x^2$

$\sin(\sin x + x) + \sin x + x$

$\sin^2 x + 2\sin x + x$

✅ Correct Option: 3

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