Can somebody tell me how can i find the periodicity of: and I know that i have to equal to but i cant solve it. Help is always appreciated .
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Originally Posted by Fabio010 Can somebody tell me how can i find the periodicity of: and I know that i have to equal to but i cant solve it. Help is always appreciated . I assume that sen(x) is what most of us refer to as sin(x) . Sketch a graph of each function. Use one of the double angle identities for the cosine to find a way to express in terms of cos(2x) .
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Originally Posted by SammyS I assume that sen(x) is what most of us refer to as sin(x) . Sketch a graph of each function. Use one of the double angle identities for the cosine to find a way to express in terms of cos(2x) . I never noticed that k belongs to Z So The other function, is not periodic, because we can see in graphic. But how can i prove that is not periodic??
Correct. The period is π .
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