20-Y - cos wt - cos 3wt - cos 5wt In the equation of a periodic motion - the time period is given as T - 2-w- How the time period is like that - Although- for each term time period s are 2-w - 2-3w - 2-5w respectively-

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20.Y = cos wt...

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20.Y = cos wt + cos 3wt + cos 5wt In the equation of a periodic motion , the time period is given as T = 2π/w. How the time period is like that ?? Although, for each term time period s are 2π/w , 2π/3w , 2π/5w respectively.

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