tìm m ..........

N

nguyenbahiep1

[laTEX]y' = 4x^3-4m^2x = 0 \\ \\ x= 0 \Rightarrow A ( 0, 1) \\ \\ x^2=m^2 \Rightarrow m\not =0 \\ \\ B ( m , 1-m^4) \\ \\ C (-m , 1-m^4) \\ \\ \vec{AC}.\vec{AB} = 0 \Rightarrow m = ?[/laTEX]
 
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