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Sum of n Terms in AP

Find the fund...

Question

Find the fundamental period for $f (x) =∣ cos x ∣$

\frac{π}{2}

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π

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2 π

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4 π

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Solution

The correct option is D $π$
Fundamental period of $f (x) =∣ cos x ∣$ is $π$
Ans: B

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