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10 questions from this quiz
cos(nθ)+isin(nθ)\cos(n \theta) + i \sin(n \theta)cos(nθ)+isin(nθ)
cos2θ−sin2θ\cos^2 \theta - \sin^2 \thetacos2θ−sin2θ
2cosθsinθ2 \cos \theta \sin \theta2cosθsinθ
0,2π3,4π30, \frac{2\pi}{3}, \frac{4\pi}{3}0,32π,34π
2,2i,−2,−2i2, 2i, -2, -2i2,2i,−2,−2i
cos3θ−3cosθsin2θ\cos^3 \theta - 3 \cos \theta \sin^2 \thetacos3θ−3cosθsin2θ
3cos2θsinθ−sin3θ3 \cos^2 \theta \sin \theta - \sin^3 \theta3cos2θsinθ−sin3θ
eiθ=cosθ+isinθe^{i\theta} = \cos \theta + i \sin \thetaeiθ=cosθ+isinθ
Geometric series
Finding derivatives of trig functions
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