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OpenStudy (anonymous):
E_n = int((2*x/Pi)^(2*n)*cos(x), x = -(1/2)*pi .. (1/2)*pi) I'm supposed to use integration by parts to make a reduction formula for E_n but it seems to just make it more complicated. Can somebody help me figure this out?
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OpenStudy (turingtest):
\[E_n=\int_{2x/\pi}^{2n}\cos x dx\]\[-\frac\pi2\le x\le\frac\pi2\]did I type this right?
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