How do you prove: Sin3θ = 3Sinθ−4Sin3θ?

1.	How do you prove: Sin3θ = 3Sinθ−4Sin3θ?
Answer» Sin3θ= 3sinθ - 4sin³θ Trigonometric functions(also calledcircular functions or angle functions) are real functions that relate an angle of a right-angled triangle to the ratio of the other two side lengths.

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