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If int e^(3x)cos4xdx=e^(3x)(Asin4x+Bcos4...

If `int e^(3x)cos4xdx=e^(3x)(Asin4x+Bcos4x)+C`, then:

A

`4A=3B`

B

`2A=3B`

C

`3A=4B`

D

`3A=2B`

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