P
phuongxinhna


cho ham so
y=x[TEX]^3[/TEX]-3x[TEX]^2[/TEX]+3mx+1-m (c)
tim cacs gia tri cua m sao cho ham so co cuc tri dong thoi duong thang qua hai diem cuc tri tao voi duong thang d :3x+y-8=0 mot goc 45 do
y=x[TEX]^3[/TEX]-3x[TEX]^2[/TEX]+3mx+1-m (c)
tim cacs gia tri cua m sao cho ham so co cuc tri dong thoi duong thang qua hai diem cuc tri tao voi duong thang d :3x+y-8=0 mot goc 45 do