Find the fourth roots of 81 (cos 120° +i sin 120°) Enter the first root below and the remainder of the roots on your scratch раper. The first root is (cos degrees +i sin degrees). There will be a total of root(s). The remainder of the roots are listed on my scratch paper. Submit Answer

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.