jennahalyssyridgaf
jennahalyssyridgaf jennahalyssyridgaf
  • 07-08-2016
  • Mathematics
contestada

convert to rectangular form r=4 cos theta

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caylus
caylus caylus
  • 07-08-2016
Hello,

x=r cos t
y=r sin t
x²+y²=r²

r=4 cos t
r=4x/r==>x²+y²=4x
==>(x-2)²+y²=4 (a circle center (2,0),radius 2)

Answer Link
Hussain514 Hussain514
  • 10-08-2016
r^2 = 4r costheta
x= r costheta
y=rsin thta
r^2 = 4x 
x^2+y^2 = 4x
  r^2=x^2+y^2 


x^2+y^2=4x 
x^2+4x+y^2=0 
x^2-4x+4 +y^2=4 
(x-2)^2+y^2 = 4 
Answer Link

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