# Find Payment, Total Cost, and Total Interest of a Loan with Down Payment

This video explains how to determine the monthly payment, total cost, and total interest with a down payment. The TVM solver is used as well as the loan formula.

# Find Initial Amount and Amount After Time From Half-Life (y=ae^(kt))

This video explains how to use half-life to determine an initial amount and an amount after time t.

# Solve a Trig Equation Using Reciprocal Identities: 2cos^2(x)-cot(x)=0

This video explains how to solve a trig equation using reciprocal identities.

# Solve a Trig Equation Using Reciprocal Identities: tan^2(x)=4sin^2(x)

This video explains how to solve a trig equation using reciprocal identities.

# Solve a Trig Equation Using Reciprocal Identities: 2cot(x)+csc(x)=0

This video explains how to solve a trig equation using reciprocal identities.

# Solve a Log Equation by Factoring (Trinomial)

This video explains how to solve a logarithmic equation by factoring.

# Solve a Log Equation by Factoring (GCF)

This video explains how to solve a logarithmic equation by factoring.