Question

23. Period of the function f(x) = cos X. cos3x is kpi , then k =​

Answer 1

Answer:

Step-by-step explanation:

The fundamental period of a function is the period of the function which are of the form, f(x+k)=f(x) f(x+k)=f(x), then k is called the period of the function and the function f is called a periodic function. Now, Let us define the function h(t) on the interval [0,2] as follows: If we extend the function h to all of R by the equation, h(t+2)=h(t) => h is periodic with period 2.

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Answer 2

Answer:

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