2 years ago

Find the oth term of the geometric sequence 9, -27, 81, ...

Mathematics

1 answer:

Novosadov [1.4K]2 years ago

6 0

It would b 9 x (-3^(x-1))

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Q(a+1) - 2q(a) if q(x) = x²+3x+4

siniylev [52]

$q(x) = {x}^{2} + 3x + 4$

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Step(1)

To find q(a) we just need to put a instead of x in q(x) function.

Let's do it...

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Step (2)

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Let's do it...

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Step (3)

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And we're done.

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