1 Answer

Gaurav Paliwal · Answer 1 · 2022-04-28T12:34:42+0000

Answer:

$4 * - 2 {}^(n - 1)$

Explanation:

Use the formula.

$f(n) = f(1) * {r}^(n - 1)$

where f(1) is the first terms, r is the common ratio, and n is our undefined term.

4 is our first term. so

f(1)=4.

Our common ratio is -2 so

r=-2.

$4 * - 2 {}^(n - 1)$

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