Question

evaluate

Answer 1

\[\frac{ -x^2 }{ 2 }\cos2x+\frac{ x }{ 2 }\sin2x+\frac{ 1 }{ 4 }\cos 2x\]

Answer 2

to

Answer 3

i tried this i got \[\frac{ \pi^2 }{ 8 }-\frac{ 1 }{ 4 }\]

Answer 4

how u got that ? show your work, i'll spot the error.

Answer 5

oka