你如何将y = 3x ^ 2-5x-y ^ 2转换为极坐标方程?

你如何将y = 3x ^ 2-5x-y ^ 2转换为极坐标方程?
Anonim

回答:

#r组成= - (sintheta + 5costheta)/(罪^的2θ-3cos ^的2θ)#

说明:

为此,我们需要以下内容:

#X = rcostheta#

#Y = rsintheta#

#rsintheta = 3(rcostheta)^ 2-5(rcostheta) - (rsintheta)^ 2#

#rsintheta = 3R ^ 2COS ^的2θ-5rcostheta-R ^ 2sin ^的2θ#

#rsintheta + R ^ 2sin ^的2θ= 3R ^ 2COS ^的2θ-5rcostheta#

#sintheta + RSIN ^的2θ= 3rcos ^的2θ-5costheta#

#RSIN ^的2θ-3rcos ^的2θ= -sintheta-5costheta#

#r组成=( - sintheta-5costheta)/(罪^的2θ-3cos ^的2θ)= - (sintheta + 5costheta)/(罪^的2θ-3cos ^的2θ)#