Đáp án: $f'\left( 0 \right) = 1$
Giải thích các bước giải:
$\begin{array}{l}f\left( x \right) = \left\{ \begin{array}{l}\dfrac{{{{\sin }^2}x}}{x}\left( {x > 0} \right)\\x + {x^2}\left( {x \le 0} \right)\end{array} \right.\\Khi:x = 0\\ \Leftrightarrow f\left( x \right) = x + {x^2}\\ \Leftrightarrow f'\left( x \right) = 1 + 2x\\ \Leftrightarrow f'\left( 0 \right) = 1 + 2.0 = 1\\Vậy\,f'\left( 0 \right) = 1\end{array}$
Ta có
$f(x)=x+x^2$
=>$f'(x)=(x+x^2)'$
<=>$f'(x)=2x+1$
=>$f'(0)=2.0+1=1$
Xin hya nhat
Giữa cây ngô và châu chấu có quan hệ gì
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