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参数方程(θ为参数)化为普通方程是A.2x-y+4=0B.2x+y-4=0C.2x-y+4...
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参数方程
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(θ为参数)化为普通方程是( )
A.2x-y+4=0
B.2x+y-4=0
C.2x-y+4=0,x∈[2,3]
D.2x+y-4=0,x∈[2,3]
相关试题
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参数方程
(θ为参数)化为普通方程是( )
A.2x-y+4=0
B.2x+y-4=0
C.2x-y+4=0,x∈[2,3]
D.2x+y-4=0,x∈[2,3]
-
参数方程
(θ为参数)化为普通方程是( )
A.2x-y+4=0
B.2x+y-4=0
C.2x-y+4=0,x∈[2,3]
D.2x+y-4=0,x∈[2,3]
-
参数方程
(θ为参数)化为普通方程是( )
A.2x-y+4=0
B.2x+y-4=0
C.2x-y+4=0,x∈[2,3]
D.2x+y-4=0,x∈[2,3]
-
与直线2x-y+5=0平行的抛物线y=x2的切线方程为( )
A.2x-y-1=0
B.2x-y-3=0
C.2x-y+1=0
D.2x-y+3=0
-
与直线2x-y+4=0的平行的抛物线y=x2的切线方程是( )
A.2x-y+3=0
B.2x-y-3=0
C.2x-y+1=0
D.2x-y-1=0
-
与直线2x-y+4=0的平行的抛物线y=x2的切线方程是( )
A.2x-y+3=0
B.2x-y-3=0
C.2x-y+1=0
D.2x-y-1=0
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直线l1:x-2y-2=0关于直线l2:x+y=0对称的直线l3的方程为( )
A.2x-y-2=0
B.2x-y+2=0
C.2x-y-1=0
D.2x-y+1=0
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过点(0,3)且斜率为2的直线方程为( )
A.2x-y-3=0
B.2x-y+3=0
C.x+2y-3=0
D.x-2y+3=0
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在两条平行直线2x-y=3,2x-y=18之间,且到这两条平行直线的距离之比是3:2的直线方程是( )
A.2x-y-9=0或2x-y-48=0
B.2x-y-9=0或2x-y-12=0
C.2x-y-12=0或2x-y-48=0
D.2x-y-12=0或2x-y-27=0
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过直线2x-y+4=0与x-y+5=0的交点,且垂直于直线x-2y=0的直线方程是( )
A.2x+y-8=0
B.2x-y-8=0
C.2x+y+8=0
D.2x-y+8=0