JEE MATHEMATICS MCQ: FUNCTIONS

1 Easy

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Understanding +4 | -1

Let

f(x)=\cos (p x)+\sin x

be periodic, then

p

must be:

View answer and explanation

Correct option: C

Rational

Option C (Rational) is correct because for the sum of cosine and sine functions to be periodic, the ratio of their frequencies must be rational.

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