# Probability of 3 letters With Repetition are Vowels

This video explains how to determine the probability that 3 randomly typed letters with repetition are all vowels.

# Probability of 4 letters With No Repetition are Vowels

This video explains how to determine the probability that 4 randomly typed letters without repetition are all vowels.

# Probability of 3 letters With No Repetition are Vowels

This video explains how to determine the probability that 3 randomly typed letters without repetition are all vowels.

# Probability of 6 Letters With No Repetition

This video explains how to determine the probability that 6 randomly typed letters have no repetition.

# Ex: Determine the Type of Conic Section Given a Polar Equation

This video explains how to determine the type of conic section given a polar equation.

# Derive the Auxiliary Equation for a Cauchy-Euler Equation

This video derives the auxiliarly or characteristic equation used to solve a second order Cauchy-Euler differential equation.

# General Solution to a Second Order Homogeneous Cauchy-Euler Equation (distinct real)

This video provides an example of how to solve a second order homogeneous Cauchy-Euler Equation with the auxiliary equation has two distinct real roots.