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nth term a_{n}=3^{n-1}

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(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

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vértices y=x²+x+1

Solution

Mínimo (−12 , 34 )

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Encontrar o vértice usando a forma polinomial

Encontrar o vértice usando a forma da parábola

Encontrar o vértice usando a forma do vértice

One step at a time

y=x²+x+1

Equação de parábola na forma polinomial

O vértice de uma parábola com concavidade para cima ou para baixo na forma y=ax²+bx+c é x_v=−b2a

Os parâmetros da parábola são:

a=1, b=1, c=1

x_v=−b2a

x_v=−12· 1

Simplificar

x_v=−12

Insira x_v=−12 para encontrar o valor y_v

y_v=34

Portanto, o vértice da parábola é

(−12 , 34 )

Se a<0, então o vértice é um valor máximo
Si a>0, então o vértice é um valor mínimo
a=1

Mínimo (−12 , 34 )

Order of operations two-step without parentheses Examples

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

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nth term a_{n}=3^{n-1}

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nth term a_{n}=3^{n-1}

Solution

Solution steps

Number Line

Graph