Question
Find the maximum and minimum value of, h(x) = sin(2x) + 5

Answer

It is given that h(x) = sin(2x) + 5
Now, we can see that $-1 \leq \sin 2 x \leq 1$
$\Rightarrow-1+5 \leq \sin 2 x+5 \leq 1+5$
$\Rightarrow 4 \leq \sin 2 x+5 \leq 6$
Therefore, the maximum and minimum value of function h are 6 and 4 respectively.

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