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प्रश्न
Find an anti derivative (or integral) of the following function by the method of inspection.
sin 2x
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उत्तर
We know that,
`d/dx` cos 2x = - 2 sin 2x
or sin 2x = `-1/2 d/dx` cos 2x
∴ sin 2x = `"d"/"dx" (-1/2 cos 2x)`
Therefore, the antiderivative of sin 2x is `-1/2` cos 2x.
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