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Basic Differentiation Rule

If y=2 sinx, ...

Question

If $y = 2 sin x$ , then $\frac{d y}{d x}$ will be

A

2 cos (x)

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B

- 2 cos (x)

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C

cos (x)

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D

None

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Solution

The correct option is A $2 cos (x)$
$y = 2 sin x$
$d y / d x = 2 cos x$

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