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2 years ago

Find the formula an for the nth term of the geometric sequence satisfying the following conditions: a1 = -2,

Mathematics

1 answer:

Alexeev081 [22]2 years ago

3 0

Answer:

Step-by-step explanation:

a1 = - 2

an = a1 * r^(n - 1)

a6 = -486

-486 = - 2 * r^(6-1) Divide by 2

243 = r^5

The largest value that r could be is 3.

4^5 = 1024

(243)^(1/5) = 3

So the general formula

an = -2*(3)^(n - 1)

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3 years ago

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3 years ago

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3 years ago

Simply 6-4 root 3/ 6+4 root 3 by ratnolising the denominator

Inessa [10]

$\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}$

the question asks us to rationalise the given expression !

so let's start ~

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hope helpful :D

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2 years ago

Read 2 more answers

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3 years ago