已知 f(x) = x³+ x² f ↓( 1 ),则f ↓( 1 )=?
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已知 f(x) = x³+ x² f ↓( 1 ),则f ↓( 1 )=?
已知 f(x) = x³+ x² f ↓( 1 ),则f ↓( 1 )=?
已知 f(x) = x³+ x² f ↓( 1 ),则f ↓( 1 )=?
f(x) = x³+ x² f'(1) (是说f(1)的导数?)
对于上面方程等式两边求导有:
f'(x)=3x²+2x*f'(1) 代入x=1有
f'(1)=3+2f'(1)
f'(1)=3