Solved Integral^6_o sin mpi/b y = -b/npi [cos mpi - i] = [I | Chegg.com
What is the value of sin (nπ /2)? - Quora
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sequences and series - Using roots of unity to prove that $\cos\frac{\pi }{2n}\cos\frac{2\pi}{2n}\cdots\cos\frac{(n-1)\pi}{2n}=\frac{\sqrt{n}}{2^{n-1}}$ - Mathematics Stack Exchange
Find the value of sin { npi + ( - 1)^npi/4 } , where n is an integer.
Solved Let a_n = sin (n pi/2) for every n N Calculate lim | Chegg.com
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