Write the complex number in trigonometric form, using degree measure for the argument.9 - 12i
A. 15(cos 233.1° + i sin 233.1°)
B. 15(cos 53.1° + i sin 53.1°)
C. 15(cos 126.9° + i sin 126.9°)
D. 15(cos 306.9° + i sin 306.9°)
Answer: D
Mathematics
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