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OpenStudy (anonymous):
What is (-1/npi)cos(npix/3) from -3 to 3 equal to? I'm getting 0, but the answer is 2(−1)^(n+1)/nπ. n is 1, 2, 3...
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OpenStudy (anonymous):
im pretty sure that it is 2
OpenStudy (anonymous):
You mean just 2 or the 2(-1)...
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