What is the period of $f(t)=cost$ ?

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Answer 1 · 2018-05-12T07:31:07

$2pi$ or $360"°"$

graph{y=cosx [-1,13, -4,3.4]}
Observe the length of a cycle from the graph of $f(t)=cost$ .

OR

We know that the period of cosine function is $(2pi)/c$ , in $y=acosctheta$ .

$:.$ The period is $(2pi)/1=2pi$ .

What is the period of f(t)=cost f(t)=cost ?