anonymous
  • anonymous
write each complex number in rectangle form. plot and label (with a-b) each point on the polar axes below.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
anonymous
  • anonymous
|dw:1328210221927:dw|
anonymous
  • anonymous
how do you write it in this form

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anonymous
  • anonymous
a. 2(cos(135)+i sin(135)) b. 3(cos(120))+i sin(120)) c. 5(cos(5pi/4)+i sin(5pi/4)) d. 4(cos(5pi/3)+i sin (5pi/3))
anonymous
  • anonymous
write in rectangular form means in this case evaluate the cosine and sine at the angles given, then multiply by the coefficient out front
anonymous
  • anonymous
can't i do this in wolframe? or mathway.com?
anonymous
  • anonymous
guess so http://www.wolframalpha.com/input/?i=2%28cos%28135%29%2Bi+sin%28135%29%29
anonymous
  • anonymous
just put in standard for. for example the one i sent write \[-\sqrt{2}+\sqrt{2}i\]
anonymous
  • anonymous
oh so its pose to written like that?

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