3[sinx – cosx]4 + 6[sinx + cosx]2 + 4[sin6x + cos6x] = ? – McqOptions

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1.	3[sinx – cosx]4 + 6[sinx + cosx]2 + 4[sin6x + cos6x] = ?
A.	6
B.	4
C.	3
D.	13
Answer» E.

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