# Write a Given Finite Geometric Series Using Sigma (Summation) Notation

This video explains how to write a given geometric series using sigma notation. The sum is then found.

# Write a Given Finite Arithmetic Series Using Sigma (Summation) Notation (d<0)

This video explains how to write a given arithmetic series using sigma notation. The sum is then found.

# Write a Given Finite Arithmetic Series Using Sigma (Summation) Notation (d>0)

This video explains how to write a given arithmetic series using sigma notation. The sum is then found.

# Ex: Simplify a Radical Expression Using Rational Exponents

This video explains how to simplify a radical expression by using rational exponents.

# Simplify a Radical with a Large Index and a Radicand with a Googol

This video explains how to simplify a radical expression with a large index and a radicand involving a googol.

# Ex: Simplify a Radical with an Index of 18 (Perfect Root)

This video explains several approaches to simplify a radical that simplifies perfectly.