anonymous
  • anonymous
What is the rectangular form of (4, 90º)? Please help ):!!
Precalculus
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
one way is to draw this on a coordinate plane. have you tried that?
anonymous
  • anonymous
Yes I have but I don't know how to put it in a rectangular form ):
hartnn
  • hartnn
or simply you can use the formulas, (4, 90) ---> (r, theta) r=4 theta = 90 x= r cos theta = 4 cos 90 =....? y= r sin theta = 4 sin 90 =... ?

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anonymous
  • anonymous
rectangular form is another way of representing the same number using i or j in some applications
anonymous
  • anonymous
x=0 y=4, 0+4i?
hartnn
  • hartnn
yes! j4 or i4, whatever u call...
anonymous
  • anonymous
by drawing stuff you see the angle it makes with the x and y axis, then you can move to formulas, but for things that have 90 degree and multiples of it is easier to visualize if you draw it.
mathstudent55
  • mathstudent55
Rectangular form is an (x, y) pair.
anonymous
  • anonymous
YESSS! <3 Thank you very much (:
hartnn
  • hartnn
(x,y) = (0,4)
hartnn
  • hartnn
welcome ^_^
mathstudent55
  • mathstudent55
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