题目内容
A.5x-5y-4=0 B.5x+5y+4=0
C.5x+5y-4=0 D.3x+5y-4=0
A
A.5x-5y-4=0
B.5x+5y-4=0
C.5x+5y-4=0或5x+5y+4=0
D.5x-5y-4=0或5x-5y+4=0
A.5x+5y-4=0
B.5x-5y-4=0
C.5x-5y+4=0
D.5x-5y±4=0
已知曲线y=x5上一点M处的切线与直线y=3-x垂直,则此切线方程只能是
A.5x+5y-4=0 B.5x-5y-4=0
C.5x-5y+4=0 D.5x-5y±4=0
A.5x+5y-4=0 B.5x-5y-4=0
C.5x-5y+4=0 D.5x-5y±4=0