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Plot $y=2 \sin x$.
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Verified Answer
The correct answer is:
We know; $y=\sin x$ and $f(x) \rightarrow a f(x)$
$\Rightarrow$ Stretch the graph of $f(x)$ ' $a$ ' times along $y$-axis.
$\therefore y=2 \sin x \Rightarrow$ stretch the graph of $\sin x, (2)$ times along $y$-axis.
$\Rightarrow$ Stretch the graph of $f(x)$ ' $a$ ' times along $y$-axis.
$\therefore y=2 \sin x \Rightarrow$ stretch the graph of $\sin x, (2)$ times along $y$-axis.
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