Write the complex number in polar form. Express the argument in degrees.4i
A. 4(cos 0° + i sin 0°)
B. 4(cos 180° + i sin 180°)
C. 4(cos 270° + i sin 270°)
D. 4(cos 90° + i sin 90°)
Answer: D
Mathematics
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A. 
B. 
C. 
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