Provide an appropriate response.Find all complex square roots of z = 121(cos 60° + i sin 60°). Write each root in standard polar form with the argument in degrees.

A. 11(cos 30° + i sin 30°), 11(cos 210° + i sin 210°)
B. 11(cos 60° + i sin 60°), -11(cos 120° + i sin 120°)
C. 11(cos 60° + i sin 60°), 11(cos 120° + i sin 120°)
D. 11(cos 30° + i sin 30°), 120(cos 210° + i sin 210°)


Answer: A

Mathematics

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Using a sum or difference identity, write the following as an expression involving functions of x.sin 

A. -cos x
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