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nth term a_{n}=4(-2)^{n-1}

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

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domínio 1−sec²(x)

Solution

πn≤ x<π2 +πn or π2 +πn<x<π+πn

Interval Notation

[πn, π2 +πn)∪(π2 +πn, π+πn)

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Definição de domínio

O domínio de uma função é o conjunto de entradas para os quais a função é real e definida

Tomar o(s) denominador(es) de 1−sec²(x) e comparar com zero: x=π2 +πn

Periodicidade de 1−sec²(x): π

Combinar o periodo: πn≤ x<π+πn y]e os pontos indefinidos.
O domínio é

πn≤ x<π2 +πn or π2 +πn<x<π+πn

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intervalo 1−sec²(x)

periodicidade 1−sec²(x)

inversa 1−sec²(x)

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

nth term a_{n}=4(-2)^{n-1}

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