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Questions  

Which of the following functions is not periodic

a
2x2[x]
b
sin−1{x}
c
sin−1cosx
d
sin−1cosx2

detailed solution

Correct option is D

Period of 2x2[x] is 1. Period of sin−1{x} is 1.Period of sin−1cosx is 2π where as sin−1cosx2 is non-periodic.

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