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I am given three sine waves with individual frequency being 10 Hz, 50 Hz, and 100 Hz.

What is the frequency of the following :

Is it simply 100, the LCM of all the sin waves? If not, How to calculate the frequency of y(t) ?

What is the frequency of the following :

y(t) = sin(2π10t) + sin(2π50t) + sin(2π100t)

Is it simply 100, the LCM of all the sin waves? If not, How to calculate the frequency of y(t) ?