so i tried the problem got ln(sec(4x)) & -2cos(4x) what am i doing wrong?
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tried what problem?
Originally Posted by artvandalay11 tried what problem? the y = is the actual question.
Originally Posted by XplicitZero the y = is the actual question. you need to know when tan(4x)=2sin(4x)?
No, the OP trying to integrate each function between the limits $\displaystyle \left(-\frac{\pi}{2}, \frac{\pi}{2}\right)$.
Originally Posted by XplicitZero so i tried the problem got ln(sec(4x)) & -2cos(4x) what am i doing wrong? both odd functions with limits of integration from -a to a ... what's that tell you?
don't know =(
Originally Posted by XplicitZero don't know =( visualize the definite integral ... graph one of them and see for yourself.
the graph looks crazy. line + zig-zag, but i really dunno.
window is from $\displaystyle \left[-\frac{\pi}{12} \, , \, \frac{\pi}{12}\right]$ look at it ... what's the value of the definite integral?
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