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

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

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points critiques 4x²−x−3

Solution

x=18

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4x²−x−3

Définition du point critique

Les points critiques sont les points où la fonction est définie et sa dérivée est zéro ou non définie

Trouver le point où f ′(x)est égal à zéro ou non défini

x=18

Identifier les points critiques qui ne se trouvent pas dans le domaine de définition f(x)

Domaine de 4x²−x−3 : −∞ <x<∞

Tous les points critiques se trouvent dans le domaine de définition

x=18

Solve instead

domaine indéfini 4x²−x−3

gamme 4x²−x−3

sommets 4x²−x−3

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Notebook

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

√`x`²−4	`x`< 0
`x`³−`x`	`x`≥0

`x`²	`x`<−2
ln(`x`+5)	`x`≥−2

sin(`x`)	`x`<0
2`x`	`x`≥0

√`x`+2	`x`<1
`xx`²−6`x`+8	`x`≥1

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