The number of solutions of the equation 1 + sin4 x = cos2 3x, \(x \in – McqOptions

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1.	The number of solutions of the equation 1 + sin4 x = cos2 3x, \(x \in \left[ { - \frac{{5\pi }}{2},\frac{{5\pi }}{2}} \right]\) is:
A.	3
B.	5
C.	7
D.	4
Answer» C. 7

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