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Which expression is NOT equivalent to cos 2A?
a. 2cos^2 A  1
b. cos^2 A  sin^2 A
c. 2sinAcosA
d. 1  2sin^2 A
 one year ago
 one year ago
Which expression is NOT equivalent to cos 2A? a. 2cos^2 A  1 b. cos^2 A  sin^2 A c. 2sinAcosA d. 1  2sin^2 A
 one year ago
 one year ago

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Henry.ListerBest ResponseYou've already chosen the best response.2
C . C is the Sin2A rule.
 one year ago
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