1.

Method of integration by parts : inte^(x)sin x cos x dx=...+c

Answer»

`(E^(x))/(2 sqrt(5))COS(2x-tan^(-1)2)`
`(e^(x))/(2 sqrt(5))SIN(2x-tan^(-1)2)`
`(e^(x))/(2 sqrt(5))sin(2x+tan^(-1)2)`
`(e^(x))/(2 sqrt(5))sin(2x+pi-tan^(-1)2)`

Answer :B


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