已知函数F(X)=X^2-2X-2,X属于[0,1],G(X)=X^3-3a^2X-2a,X属于[0,1](1)求F(X)的值域M (2)若a≥1,求G(X)的值域N

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已知函数F(X)=X^2-2X-2,X属于[0,1],G(X)=X^3-3a^2X-2a,X属于[0,1](1)求F(X)的值域M (2)若a≥1,求G(X)的值域N

已知函数F(X)=X^2-2X-2,X属于[0,1],G(X)=X^3-3a^2X-2a,X属于[0,1](1)求F(X)的值域M (2)若a≥1,求G(X)的值域N
已知函数F(X)=X^2-2X-2,X属于[0,1],G(X)=X^3-3a^2X-2a,X属于[0,1]
(1)求F(X)的值域M (2)若a≥1,求G(X)的值域N

已知函数F(X)=X^2-2X-2,X属于[0,1],G(X)=X^3-3a^2X-2a,X属于[0,1](1)求F(X)的值域M (2)若a≥1,求G(X)的值域N
F(X)=X^2-2X-2=(X-1)^2-3 [-3,-2]
G(X)=X^3-3a^2X-2a
G'=3x^2-3a^2=3(x-a)(x+a)
[-a,a] G减
[0,1]包含于[-a,a]
G(0)=-2a > G(1)=1-3a^2-2a [1-3a^2-2a,2a]