Q: If Cos A + Cos2 A = 1, then Sin2 A + Sin4 A=? – McqOptions

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1.	Q: If Cos A + Cos2 A = 1, then Sin2 A + Sin4 A=?
A.	0
B.	1
C.	$$ {1\over 2}$$
D.	-1
Answer» C. $$ {1\over 2}$$

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