Maximum value of f(x) = x + x is - Vidyadip

MCQ

Maximum value of $f(x) = \sin x + \cos x$ is

A
$1$
B
$2$
C
$\frac{1}{{\sqrt 2 }}$
✓
$\sqrt 2 $

✓

Answer

Correct option: D.

$\sqrt 2 $

d
(d) Maximum value of $f(x) = \sqrt {{1^2} + {1^2}} = \sqrt 2 $.

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