first term a_{1}=-20,a_{5}=-1620,r=3

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

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first term a₁=−20, a₅=−1620, r=3

Solution

a₁=−20

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a₁=−20, r=3

a₁ is given

a₁=−20

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sequence type a₁=−20, a₅=−1620, r=3

nth term a₁=−20, a₅=−1620, r=3

next term a₁=−20, a₅=−1620, r=3

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

first term a_{1}=-20,a_{5}=-1620,r=3

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