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Question Number 113975 by I want to learn more last updated on 16/Sep/20

Find the nth term:   1,  0,  − 1,  0,  1,  0,  − 1,  0,  ...

Findthenthterm:1,0,1,0,1,0,1,0,...

Answered by Olaf last updated on 16/Sep/20

u_n  = cos(n(π/2))

un=cos(nπ2)

Commented by I want to learn more last updated on 17/Sep/20

Please workings sir

Pleaseworkingssir

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