SOLUTION: Determine the rectangular form of the following complex number: z=7(cos 3pi/2 + i sin 3pi/2)

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Question 87261: Determine the rectangular form of the following complex number:
z=7(cos 3pi/2 + i sin 3pi/2)
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
Determine the rectangular form of the following complex number:
z = 7%28cos%283pi%2F2%29+%2B+i+sin%283pi%2F2%29%29


Just work it out substituting cos%283pi%2F2%29 = 0 and sin%283pi%2F2%29 = -1

z = 7(0 + i(-1))

z = 7(-i)

z = -7i

Edwin