直线l:(2m²+m-3)x+(m²-m)y=m²-1的倾斜角为3π/4,求m
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直线l:(2m²+m-3)x+(m²-m)y=m²-1的倾斜角为3π/4,求m直线l:(2m²+m-3)x+(m²-m)y=m²-1的倾斜角
直线l:(2m²+m-3)x+(m²-m)y=m²-1的倾斜角为3π/4,求m
直线l:(2m²+m-3)x+(m²-m)y=m²-1的倾斜角为3π/4,求m
直线l:(2m²+m-3)x+(m²-m)y=m²-1的倾斜角为3π/4,求m
k=-(2m²+m-3)/(m²-m)=tan3π/4=-1,
∴m^2+2m-3=0
∴m=-3或m=1