回答:
#R =(costheta-5sintheta)/(SIN(的2θ))#
说明:
为此,我们将使用两个方程式:
#X = rcostheta#
#,Y = rsintheta#
#5rsintheta = rcostheta-2(rcos theta)(rsintheta)#
#5rsintheta = rcostheta-2R ^ 2costhetasintheta#
#5sintheta = costheta-2rcosthetasintheta#
#2rcosthetasintheta = costheta-5sintheta#
#R =(costheta-5sintheta)/(2costhetasintheta)#
#R =(costheta-5sintheta)/(SIN(的2θ))#