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if period of function cos(nx).sin(5x/n) is 3 pi, then number of integral values of n are

if period of function cos(nx).sin(5x/n) is 3 pi, then number of integral values of n are 

Grade:12th pass

1 Answers

Sher Mohammad IIT Delhi
askIITians Faculty 174 Points
6 years ago
cos(n(x+3Npi).sin(5(x+3Npi)/n)= cos nx . sin 5x/n, equating and solving equation gives us the values

the integral values of n are±1,±3,±5,±15

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