Write the complex number in polar form.9 + 12j
A. 15(cos 233.1° + j sin 233.1°)
B. 15(cos 306.9° + j sin 306.9°)
C. 15(cos 53.1° + j sin 53.1°)
D. 15(cos 126.9° + j sin 126.9°)
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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