In Problem 1-4, evaluate the given sum? 1. 2. 3. 4.

In Problem 1-4, evaluate the given sum?
1.
In Problem 1-4, evaluate the given sum?
1. 
2.
3.
4.

2.

In Problem 1-4, evaluate the given sum?
1. 
2.
3.
4.

3.

In Problem 1-4, evaluate the given sum?
1. 
2.
3.
4.

4.

In Problem 1-4, evaluate the given sum?
1. 
2.
3.
4.