- #1

Biosyn

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## Homework Statement

Find the sum of [itex]5^1-5^2+5^3-5^4+...-5^{98}[/itex]

a. (5/4)(1-5^99)

b. (1/6)(1-5^99)

c. (6/5)(1+5^98)

d. (1-5^100)

e. (5/6)(1-5^98)

## Homework Equations

## The Attempt at a Solution

I feel as though this is actually a simple problem and that I'm not looking at it the right way.

[[itex]5^1 + 5^3 + 5^5...5^{97}[/itex]] + [[itex]-5^2-5^4-5^6...-5^{98}[/itex]]

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