Question

find period of Sin (x+a) /cosx
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Answer 1

Answer:

period of sin + cos(x) is 360o.

The periods of sin(x) and cos(x) are both 360o so sin(x) + cos(x) repeats on any interval of length 360o. Thus 360o is a period of sin(x) + cos(x). The question is then, is 360o the period of sin + cos(x)? That is, is 360o the length of the shortest interval on which sin + cos(x) repeats

I plotted sin(x) + cos(x) for x from -360o to 720o

Explanation:

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