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10 questions from this quiz
R=a2+b2R = \sqrt{a^2 + b^2}R=a2+b2
tanα=ba\tan\alpha = \frac{b}{a}tanα=ab
tanα=ab\tan\alpha = \frac{a}{b}tanα=ba
R=5R = 5R=5
a=Rcosαa = R\cos\alphaa=Rcosα
tanα=43\tan\alpha = \frac{4}{3}tanα=34
cos(θ−α)=25\cos(\theta - \alpha) = \frac{2}{5}cos(θ−α)=52
Solving trigonometric equations
Rcos(θ−α)R\cos(\theta - \alpha)Rcos(θ−α)
Sinusoidal voltages out of phase
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