intervalo cos^3(t)

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`x`²	`x`^□	log_□	√☐	^□√☐	≤	≥	□□	·	÷	`x`^◦	π
(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

☐²

x^☐

√☐

^□√☐

□□

log_□

θ

∞

∫

ddx

≥	≤	·	÷	`x`^◦	(☐)	\|☐\|	(`f` ◦ `g`)	`f`(`x`)	ln	`e`^☐
(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

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pontos de inflexão f(x)=xe^x²

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Definição de pontos de inflexão

Um ponto de inflexão é um ponto do gráfico no qual a segunda derivada é igual a zero ou indefinida e muda o sinal.
Se f ′′(x)>0 então f(x) côncavo para cima.
Se f ′′(x)<0 , então f(x) côncavo para baixo.

f ′′(x)=4e^x²x³+6e^x²x

Find intervals: Côncavo para baixo:−∞ <x<0, Côncavo para cima:0<x<∞

Inserir x=0 em xe^x²: 0

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domínio xe^x²

intervalo xe^x²

interceptos xe^x²

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−▭▭	<	7	8	9	÷	`AC`
+▭▭	>	4	5	6	×	☐☐☐
×▭▭	(	1	2	3	−	`x`
▭ \|▭	)	.	0	=	+	`y`

intervalo cos^3(t)

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