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

Have differentiated it but don't know how to solve 6cosx + 6sin2x = 0.
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?
Figured it out, thanks!
Original post by Cakecupcake
Figured it out, thanks!

Brilliant!

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