cube root of 81

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

☐²

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√☐

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□□

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ddx

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

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nth termine a₁=3, a₂=2, a_n=−a_n−1

Solution

a_n=3(−1)ⁿ⁻¹

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Solution steps

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a₁=3, a₂=2, a_n=−a_n−1

Trova il tipo di successione per a₁=3, a₂=2, a_n=−a_n−1: Serie geometrica: r=−1

Il termine n-esimo di una successione geometrica è della forma a_n=a₁·rⁿ⁻¹

a₁=3, r=−1

a_n=3(−1)ⁿ⁻¹

Solve instead

sequenza tipo a₁=3, a₂=2, a_n=−a_n−1

primo termine a₁=3, a₂=2, a_n=−a_n−1

next term a₁=3, a₂=2, a_n=−a_n−1

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

cube root of 81

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