### Home > PC3 > Chapter 7 > Lesson 7.1.4 > Problem 7-51

7-51.

Use your knowledge of sigma notation to complete the following problems.

Expand and evaluate:

1. Start by evaluating the argument

for .

2. Continue to.

3. Add all of the terms.Write the following expression using sigma notation:

Start be determining an expression for the sequence

, , , , .