If A = 30°, then find the value of cos2 A + cos2 (60° + A) + cos2 (6 – McqOptions

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1.	If A = 30°, then find the value of cos2 A + cos2 (60° + A) + cos2 (60° – A).
A.	-3/2
B.	1
C.	3/2
D.	√3/2
Answer» D. √3/2

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