Find the stationary points of the curve f(x) = 6sinx - 3cos2x

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Cakecupcake
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Have differentiated it but don't know how to solve 6cosx + 6sin2x = 0.
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Almonti372
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(Original post by Cakecupcake)
Have differentiated it but don't know how to solve 6cosx + 6sin2x = 0.
Try using double angle formula for sin2x maybe?
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Cakecupcake
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Figured it out, thanks!
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Almonti372
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(Original post by Cakecupcake)
Figured it out, thanks!
Brilliant!
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