A) \[0<x<\frac{\pi }{8}\]
B) \[\frac{\pi }{4}<x<\frac{3\pi }{8}\]
C) \[\frac{3\pi }{8}<x<\frac{5\pi }{8}\]
D) \[\frac{5\pi }{8}<x<\frac{3\pi }{4}\]
Correct Answer: B
Solution :
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