Question

Evaluate:
10
Σ¹04(-2)n-¹ = [? ]



please I need help :(

Answer 1

Answer: -1364

Explanation:

This is a geometric series with first term 4 and a common ratio of -2.

Using the sum of a geometric series formula, we get this sum to be equal to:

`(4(1-(-2)^(10))/(1-(-2))=\boxed{-1364}`