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The period of $\cos (3 x+5)+7$ is
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Verified Answer
The correct answer is:
$\frac{2 \pi}{3}$
Given, $\cos (3 x+5)+7$
$\therefore \quad$ Period $=\frac{2 \pi}{|3|}\{\because$ Period of $\cos (a x+b)+c$ $\left.=\frac{2 \pi}{|a|}\right\}$
Period $=\frac{2 \pi}{3}$
$\therefore \quad$ Period $=\frac{2 \pi}{|3|}\{\because$ Period of $\cos (a x+b)+c$ $\left.=\frac{2 \pi}{|a|}\right\}$
Period $=\frac{2 \pi}{3}$
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