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定义运算,则符合条件= 0的点P (x , y)的轨迹方程为( )
A.(x 1)2 + 4y2 = 1 B.(x 1)2 4y2 = 1 C.(x 1)2 + y2 = 1 D.(x 1)2 y2 = 1
A.(x – 1)2 + 4y2 = 1 B.(x –1)2 – 4y2 = 1
C.(x –1)2 + y2 = 1 D.(x –1)2 – y2 = 1
定义运算,则满足的复数z=________。
定义运算-,则符合条件的复数对应的点在( )