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10 questions from this quiz
An equation with trigonometric functions
sin 2x = 2 sin x cos x
A method to simplify trigonometric sums
Use sin 2x = 2 sin x cos x
1
Calculate r = √(a^2 + b^2)
Ignoring the domain of solutions
Solutions repeat over intervals
To simplify trigonometric equations
If they are within the given interval
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