SOLUTION: If angle θ is an acute angle such that cosθ = (1/4), find sin(theta/2.
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Question 892034: If angle θ is an acute angle such that cosθ = (1/4), find sin(theta/2.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If angle θ is an acute angle such that cosθ = (1/4), find sin(theta/2).
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sin(t/2) = sqrt[(1-cos(t))/2] = sqrt[(1-(1/4))/2] = sqrt[(3/4)/2]
= sqrt(3/8)
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Cheers,
Stan H.
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