Question

从 C：ρ=4cosθ L｛X=1+2分之根号2t y=2分之根号2t 得到（x-2）方+y方

Answer 1

ρ=4cosθ

ρ^2=4ρcosθ

x^2+y^2=4x

x^2-4x+y^2=0

(x-2)^2+y^2=4

X=1+2分之根号2t y=2分之根号2t

x=1+y