If cos x + cos x = 1, the numerical value of (sin12x + 3 sin10x + 3 si – McqOptions

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1.	If cos x + cos x = 1, the numerical value of (sin¹²x + 3 sin¹⁰x + 3 sin⁸x + sin⁶x l) is :
A.	- 1
B.	2
C.	0
D.	1
Answer» D. 1

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