SOLUTION: Choose the correct x + yi form for: 3(cos 20o + i sin 20o)

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Question 43296: Choose the correct x + yi form for: 3(cos 20o + i sin 20o)
Answer by psbhowmick(878) About Me  (Show Source):
You can put this solution on YOUR website!
x+%2B+iy+=+3%28cos%2820%5Eo%29+%2B+i%2A+sin%2820%5Eo%29%29
or x+%2B+iy+=+3%2Acos%2820%5Eo%29+%2B+i%2A%283%2Asin%2820%5Eo%29%29

Equating real and imaginery parts, x+=+3cos%2820%5Eo%29 and y+=+3sin%2820%5Eo%29.