1
Aqui apresentamos um exemplo resolvido passo a passo de regras básicas de diferenciação. Esta solução foi gerada automaticamente pela nossa calculadora inteligente:
$\frac{d}{dx}\left(\frac{x^2+3x+1}{x^2+2x+2}\right)^2$
Passos
Aplicamos a regra: $\frac{d}{dx}\left(x^a\right)$$=ax^{\left(a-1\right)}\frac{d}{dx}\left(x\right)$, onde $a=2$ e $x=\frac{x^2+3x+1}{x^2+2x+2}$
$2\left(\frac{x^2+3x+1}{x^2+2x+2}\right)^{2-1}\frac{d}{dx}\left(\frac{x^2+3x+1}{x^2+2x+2}\right)$
Aplicamos a regra: $a+b$$=a+b$, onde $a=2$, $b=-1$ e $a+b=2-1$
$2\left(\frac{x^2+3x+1}{x^2+2x+2}\right)^{1}\frac{d}{dx}\left(\frac{x^2+3x+1}{x^2+2x+2}\right)$
Aplicamos a regra: $\frac{d}{dx}\left(x^a\right)$$=ax^{\left(a-1\right)}\frac{d}{dx}\left(x\right)$, onde $a=2$ e $x=\frac{x^2+3x+1}{x^2+2x+2}$
$2\left(\frac{x^2+3x+1}{x^2+2x+2}\right)^{2-1}\frac{d}{dx}\left(\frac{x^2+3x+1}{x^2+2x+2}\right)$
Aplicamos a regra: $a+b$$=a+b$, onde $a=2$, $b=-1$ e $a+b=2-1$
$2\left(\frac{x^2+3x+1}{x^2+2x+2}\right)^{1}\frac{d}{dx}\left(\frac{x^2+3x+1}{x^2+2x+2}\right)$
2
Aplicamos a regra: $\frac{d}{dx}\left(x^a\right)$$=ax^{\left(a-1\right)}\frac{d}{dx}\left(x\right)$, onde $a=2$ e $x=\frac{x^2+3x+1}{x^2+2x+2}$
$2\left(\frac{x^2+3x+1}{x^2+2x+2}\right)^{1}\frac{d}{dx}\left(\frac{x^2+3x+1}{x^2+2x+2}\right)$
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3
Aplicamos a regra: $x^1$$=x$
$2\left(\frac{x^2+3x+1}{x^2+2x+2}\right)\frac{d}{dx}\left(\frac{x^2+3x+1}{x^2+2x+2}\right)$
4
Aplicamos a regra: $\frac{d}{dx}\left(\frac{a}{b}\right)$$=\frac{\frac{d}{dx}\left(a\right)b-a\frac{d}{dx}\left(b\right)}{b^2}$, onde $a=x^2+3x+1$ e $b=x^2+2x+2$
$\frac{x^2+3x+1}{x^2+2x+2}\frac{2\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)-\left(x^2+3x+1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)^2}$
Passos
Aplicamos a regra: $\frac{a}{b}\frac{c}{f}$$=\frac{ac}{bf}$, onde $a=x^2+3x+1$, $b=x^2+2x+2$, $c=2\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)-\left(x^2+3x+1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)$, $a/b=\frac{x^2+3x+1}{x^2+2x+2}$, $f=\left(x^2+2x+2\right)^2$, $c/f=\frac{2\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)-\left(x^2+3x+1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)^2}$ e $a/bc/f=\frac{x^2+3x+1}{x^2+2x+2}\frac{2\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)-\left(x^2+3x+1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)^2}$
$\frac{2\left(x^2+3x+1\right)\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)-\left(x^2+3x+1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)\left(x^2+2x+2\right)^2}$
5
Aplicamos a regra: $\frac{a}{b}\frac{c}{f}$$=\frac{ac}{bf}$, onde $a=x^2+3x+1$, $b=x^2+2x+2$, $c=2\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)-\left(x^2+3x+1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)$, $a/b=\frac{x^2+3x+1}{x^2+2x+2}$, $f=\left(x^2+2x+2\right)^2$, $c/f=\frac{2\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)-\left(x^2+3x+1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)^2}$ e $a/bc/f=\frac{x^2+3x+1}{x^2+2x+2}\frac{2\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)-\left(x^2+3x+1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)^2}$
$\frac{2\left(x^2+3x+1\right)\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)-\left(x^2+3x+1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)\left(x^2+2x+2\right)^2}$
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Passos
Aplicamos a regra: $x\cdot x^n$$=x^{\left(n+1\right)}$, onde $x^nx=\left(x^2+2x+2\right)\left(x^2+2x+2\right)^2$, $x=x^2+2x+2$, $x^n=\left(x^2+2x+2\right)^2$ e $n=2$
$\frac{2\left(x^2+3x+1\right)\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)-\left(x^2+3x+1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)^{2+1}}$
Aplicamos a regra: $a+b$$=a+b$, onde $a=2$, $b=1$ e $a+b=2+1$
$\frac{2\left(x^2+3x+1\right)\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)-\left(x^2+3x+1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)^{3}}$
6
Aplicamos a regra: $x\cdot x^n$$=x^{\left(n+1\right)}$, onde $x^nx=\left(x^2+2x+2\right)\left(x^2+2x+2\right)^2$, $x=x^2+2x+2$, $x^n=\left(x^2+2x+2\right)^2$ e $n=2$
$\frac{2\left(x^2+3x+1\right)\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)-\left(x^2+3x+1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)^{3}}$
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7
Aplicamos a regra: $-\left(a+b\right)$$=-a-b$, onde $a=x^2$, $b=3x+1$, $-1.0=-1$ e $a+b=x^2+3x+1$
$\frac{2\left(x^2+3x+1\right)\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)+\left(-x^2-\left(3x+1\right)\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)^{3}}$
8
Aplicamos a regra: $-\left(a+b\right)$$=-a-b$, onde $a=3x$, $b=1$, $-1.0=-1$ e $a+b=3x+1$
$\frac{2\left(x^2+3x+1\right)\left(\frac{d}{dx}\left(x^2+3x+1\right)\left(x^2+2x+2\right)+\left(-x^2-3x-1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)^{3}}$
9
A derivada da soma de duas ou mais funções é equivalente à soma das derivadas de cada função separadamente
$\frac{2\left(x^2+3x+1\right)\left(\left(\frac{d}{dx}\left(x^2\right)+\frac{d}{dx}\left(3x\right)+\frac{d}{dx}\left(1\right)\right)\left(x^2+2x+2\right)+\left(-x^2-3x-1\right)\frac{d}{dx}\left(x^2+2x+2\right)\right)}{\left(x^2+2x+2\right)^{3}}$
10
A derivada da soma de duas ou mais funções é equivalente à soma das derivadas de cada função separadamente
$\frac{2\left(x^2+3x+1\right)\left(\left(\frac{d}{dx}\left(x^2\right)+\frac{d}{dx}\left(3x\right)+\frac{d}{dx}\left(1\right)\right)\left(x^2+2x+2\right)+\left(-x^2-3x-1\right)\left(\frac{d}{dx}\left(x^2\right)+\frac{d}{dx}\left(2x\right)+\frac{d}{dx}\left(2\right)\right)\right)}{\left(x^2+2x+2\right)^{3}}$
11
Aplicamos a regra: $\frac{d}{dx}\left(c\right)$$=0$, onde $c=1$
$\frac{2\left(x^2+3x+1\right)\left(\left(\frac{d}{dx}\left(x^2\right)+\frac{d}{dx}\left(3x\right)\right)\left(x^2+2x+2\right)+\left(-x^2-3x-1\right)\left(\frac{d}{dx}\left(x^2\right)+\frac{d}{dx}\left(2x\right)+\frac{d}{dx}\left(2\right)\right)\right)}{\left(x^2+2x+2\right)^{3}}$
12
Aplicamos a regra: $\frac{d}{dx}\left(c\right)$$=0$, onde $c=2$
$\frac{2\left(x^2+3x+1\right)\left(\left(\frac{d}{dx}\left(x^2\right)+\frac{d}{dx}\left(3x\right)\right)\left(x^2+2x+2\right)+\left(-x^2-3x-1\right)\left(\frac{d}{dx}\left(x^2\right)+\frac{d}{dx}\left(2x\right)\right)\right)}{\left(x^2+2x+2\right)^{3}}$
Passos
Aplicamos a regra: $\frac{d}{dx}\left(cx\right)$$=c\frac{d}{dx}\left(x\right)$
$3\frac{d}{dx}\left(x\right)$
Aplicamos a regra: $\frac{d}{dx}\left(x\right)$$=1$
$3$
13
Aplicamos a regra: $\frac{d}{dx}\left(nx\right)$$=n\frac{d}{dx}\left(x\right)$, onde $n=3$
$\frac{2\left(x^2+3x+1\right)\left(\left(\frac{d}{dx}\left(x^2\right)+3\frac{d}{dx}\left(x\right)\right)\left(x^2+2x+2\right)+\left(-x^2-3x-1\right)\left(\frac{d}{dx}\left(x^2\right)+\frac{d}{dx}\left(2x\right)\right)\right)}{\left(x^2+2x+2\right)^{3}}$
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Passos
Aplicamos a regra: $\frac{d}{dx}\left(cx\right)$$=c\frac{d}{dx}\left(x\right)$
$2\frac{d}{dx}\left(x\right)$
Aplicamos a regra: $\frac{d}{dx}\left(x\right)$$=1$
$2$
14
Aplicamos a regra: $\frac{d}{dx}\left(nx\right)$$=n\frac{d}{dx}\left(x\right)$, onde $n=2$
$\frac{2\left(x^2+3x+1\right)\left(\left(\frac{d}{dx}\left(x^2\right)+3\frac{d}{dx}\left(x\right)\right)\left(x^2+2x+2\right)+\left(-x^2-3x-1\right)\left(\frac{d}{dx}\left(x^2\right)+2\frac{d}{dx}\left(x\right)\right)\right)}{\left(x^2+2x+2\right)^{3}}$
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15
Aplicamos a regra: $\frac{d}{dx}\left(x\right)$$=1$
$\frac{2\left(x^2+3x+1\right)\left(\left(\frac{d}{dx}\left(x^2\right)+3\right)\left(x^2+2x+2\right)+\left(-x^2-3x-1\right)\left(\frac{d}{dx}\left(x^2\right)+2\frac{d}{dx}\left(x\right)\right)\right)}{\left(x^2+2x+2\right)^{3}}$
16
Aplicamos a regra: $\frac{d}{dx}\left(x\right)$$=1$
$\frac{2\left(x^2+3x+1\right)\left(\left(\frac{d}{dx}\left(x^2\right)+3\right)\left(x^2+2x+2\right)+\left(-x^2-3x-1\right)\left(\frac{d}{dx}\left(x^2\right)+2\right)\right)}{\left(x^2+2x+2\right)^{3}}$
Passos
Aplicamos a regra: $\frac{d}{dx}\left(x^a\right)$$=ax^{\left(a-1\right)}$, onde $a=2$
$2x^{\left(2-1\right)}$
Aplicamos a regra: $a+b$$=a+b$, onde $a=2$, $b=-1$ e $a+b=2-1$
$2x$
17
Aplicamos a regra: $\frac{d}{dx}\left(x^a\right)$$=ax^{\left(a-1\right)}$, onde $a=2$
$\frac{2\left(x^2+3x+1\right)\left(\left(2x+3\right)\left(x^2+2x+2\right)+\left(-x^2-3x-1\right)\left(2x+2\right)\right)}{\left(x^2+2x+2\right)^{3}}$
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Resposta final para o problema
$\frac{2\left(x^2+3x+1\right)\left(\left(2x+3\right)\left(x^2+2x+2\right)+\left(-x^2-3x-1\right)\left(2x+2\right)\right)}{\left(x^2+2x+2\right)^{3}}$