回答:
#R ^ 2(RCOS ^的2θ+ rcosthetasin ^的2θ-sintheta)= cotthetacsctheta#
说明:
为此,我们将使用:
#X = rcostheta#
#Y = rsinthetra#
#rsintheta =(rcostheta)^ 2-(rcostheta)/(rsintheta)^ 2 + R ^ 2costhetasin ^的2θ#
#rsintheta = R ^ 2COS ^ 2theta-(cotthetacsctheta)/ R + R ^ 2costhetasin ^的2θ#
#R 1 2sintheta = R ^ 3cos ^的2θ-cotthetacsctheta + R ^ 3costhetasin ^的2θ#
#R 1 3cos ^的2θ+ R ^ 3costhetasin ^的2θ-R 1 2sintheta = cotthetacsctheta#
#R ^ 2(RCOS ^的2θ+ rcosthetasin ^的2θ-sintheta)= cotthetacsctheta#
这不能进一步简化,必须留作隐式方程。