Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMaximum and minimum values of trigonometrical functions, Conditional trigonometrical identities
MediumWhat is the maximum value of the function $f(x) = \sin x + \cos x$?
- A$1$
- B$\sqrt{2}$
- C$2$
- D$\frac{1}{\sqrt{2}}$
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