# Cofunction Identities for Sine, Tangent, and Cosecant

This video explains how to determine a cofunction identity.

# Given f(x)=3/x-4/(3x), Solve f(x)=-7 (Rational Equation)

This video shows how to solve a rational determine the input quadratic for a given output.

# Given f(x)=x^2+4x+7, Solve f(x)=1 (No Real Rational Solutions)

This video explains what happens when you try to solve an equation by factoring and it is not factorable.

# Given f(x)=-x^2, Solve f(x)=4 (No Real Rational Solutions)

This video explains what happens when you try to solve an equation by factoring and it is not factorable.

# Given f(x)=-x^2-2x+13, Solve f(x)=2 by Factoring

This video shows how to solve a quadratic equation by factoring to determine the inputs of a quadratic function for a given output.

# Given f(x)=-x^2+4x, Solve f(x)=0 by Factoring

This video shows how to solve a quadratic equation by factoring to determine the zeros of a quadratic function

# Solve a Basic Cubice Eqaution by Factoring x^3-bx=0

This video explains how to solve a basic cubic equation using factoring. The results are verified graphically.