你如何将9 =(5x + y)^ 2-2y + x转换为极地形式?

你如何将9 =(5x + y)^ 2-2y + x转换为极地形式?
Anonim

回答:

#R = 9 /(R(+ 5costheta sintheta)^ 2-2sintheta + costheta)#

说明:

为此,我们需要:

#X = rcostheta#

#Y = rsintheta#

用这些方程代替我们:

#9 =(5rcostheta + rsintheta)^ 2-2rsintheta + rcostheta#

#9 = R ^ 2(5costheta + sintheta)^ 2-2rsintheta + rcostheta#

#9 = R(R(+ 5costheta sintheta)^ 2-2sintheta + costheta)#

#R = 9 /(R(+ 5costheta sintheta)^ 2-2sintheta + costheta)#