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FindA if (2sinA\2)squared=2
10 years ago

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PsyDAG
Indicate your <I>specific</I> subject in the "School Subject" box, so those with expertise in the area will respond to the question.
10 years ago
Steve
assuming you mean

(2 sin(A/2))^2 = 2
4 sin^2(A/2) = 2
sin^2(A/2) = 1/2
sin(A/2) = ±1/√2

Now just find all the angles that fit that.
10 years ago

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