Fundamental period of the function y=∣∣∣cot(x4−π3)∣∣∣ is
A
π3
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B
4π3
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C
2π
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D
4π
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Solution
The correct option is D4π If f(x) has fundamental period T, then f(ax+b) has fundamental period T|a|, where a≠0
We know that, the fundamental period of |cotx| is π.
Hence, the fundamental period of ∣∣∣cot(x4−π3)∣∣∣ is 4π.