把曲线ycosx+2y-1=0先沿x轴向右平移詈个单位,再沿Y轴向下平移1个单位,得到的曲线方程是()
A.(1-y)sinz+2y-3=0 B.(y-1)sinx+2y-3=0 C.(y+1)sinx+2y+1=0 D.-(y+1)sinx+2y+1=0正确答案C
把曲线ycosx+2y-1=0先沿x轴向右平移詈个单位,再沿Y轴向下平移1个单位,得到的曲线方程是()
A.(1-y)sinz+2y-3=0 B.(y-1)sinx+2y-3=0 C.(y+1)sinx+2y+1=0 D.-(y+1)sinx+2y+1=0正确答案C