A) \[|\sin \,3x|+{{\sin }^{2}}\,x\]
B) \[\cos \,\,\sqrt{x}\,+{{\cos }^{2}}\,x\]
C) \[\cos \,4x+{{\tan }^{2}}x\]
D) \[{{\cos }^{2}}x+\sin \,x\]
Correct Answer: B
Solution :
It is clear from the given options that \[\cos \sqrt{x}+{{\cos }^{2}}x\]is not periodic.
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