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Question

If y=sin(x2+2x) then dydx=

A
1
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B
[cos(x2+2x)](2x+2)
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C
cos(x2+2x)
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D
x2+2x
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Solution

The correct option is D 1
Given y=sin(x2+2x)

Using chain rule:

dydx=[cos(x2+2x)](2x+2)

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