IfÂ 3Â cos2Ã—-2sin2Â Ã—=-0.75Â andÂ 0Â°â‰¤Ã—� – McqOptions

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1.	IfÂ 3Â cos2Ã—-2sin2Â Ã—=-0.75Â andÂ 0Â°â‰¤Ã—â‰¤Â 90Â°,thenÃ—=_x005F_x000D_
A.	45Â°
B.	60Â°
C.	30Â°
D.	90Â°
Answer» C. 30Â°

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