domain ofe indéfini 2cos^3(x)

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

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sommets y=−2x²−2x−2

Solution

Maximum (−12 , −32 )

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Trouver le sommet à l'aide de la formule du polynôme

Trouver le sommet à l'aide de la formule de la parabole

Trouver le sommet à l'aide de la formule du sommet

One step at a time

y=−2x²−2x−2

Equation d'une parabole sous une forme polynomiale

Le sommet d'une parabole tournée de haut en bas de la forme y=ax²+bx+c est x_v=−b2a

Les paramètres de la parabole sont :

a=−2, b=−2, c=−2

x_v=−b2a

x_v=−(−2)2(−2)

Simplifier −−22(−2) : −12

x_v=−12

Intégrer x_v=−12 pour trouver la valeur y_v

y_v=−32

Par conséquent le vertex de la parabole est

(−12 , −32 )

Si a<0, alors le vertex est une valeur maximale
Si a>0, alors le vertex est une valeur minimale
a=−2

Maximum (−12 , −32 )

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

domain ofe indéfini 2cos^3(x)

Solution

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