Which of the following is an even function? - Vidyadip

MCQ

Which of the following is an even function?

A
$\sqrt{x}$
✓
$x^2+\sin ^2 x$
C
$\sin ^3 x$
D
all of above

✓

Answer

Correct option: B.

$x^2+\sin ^2 x$

(B)
Let $f(x)=x^2+\sin ^2 x$
Here, $f (-x)= f (x)$
$\therefore f (x)$ is an even function.

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