参数方程(θ为参数)化成普通方程是A.(x+4)2+(y+1)2=1B.(x-4)2+(y+1)2

参数方程(θ为参数)化成普通方程是

A.(x+4)2+(y+1)2=1

B.(x-4)2+(y+1)2=1

C.(x-4)2+(y-1)2=1

D.(x+4)2+(y-1)2=1

答案

B

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