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Lunna [17]
3 years ago
13

The first term of a geometric sequence is –2 and the common ratio is -1/4 . What are the next three terms of the sequence

Mathematics
2 answers:
rodikova [14]3 years ago
5 0

well -2(-1/4) is .5

so -2, .5,(multiply each by -1/4)

-2, 0.5, -0.125, 0.03125

Mumz [18]3 years ago
3 0

Answer:

\text{The next three terms of G.P is }\frac{1}{2}, \frac{-1}{8}, \frac{1}{32}

Step-by-step explanation:

Given that the first term of a geometric sequence is -2 and the common ratio is -1/4.

we have to find the next three terms of the sequence.

The geometric sequence can be written as

a, ar, ar^2, ar^3, ar^4,...

where a and r are the first term and common ratio.

a=-2, r=\frac{-1}{4}

\text{Second term=}ar=-2\times (\frac{-1}{4})=\frac{1}{2}

\text{Third term=}ar^2=-2\times (\frac{-1}{4})^2=\frac{-1}{8}

\text{Fourth term=}ar^3=-2\times (\frac{-1}{4})^3=\frac{1}{32}

\text{The next three terms of G.P is }\frac{1}{2}, \frac{-1}{8}, \frac{1}{32}

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