• The Sine Addition Formulas - Concept

How to derive the sine of a sum formula.
• The Sine Addition Formulas - Problem 1

How to use the sine of a sum formula to simplify an expression or to find the sine of an angle.
• The Cosine Addition Formulas - Concept

How to derive the cosine of a difference formula.
• The Cosine Addition Formulas - Problem 1

How to use the cosine of a difference formula to simplify an expression or to find the cosine of an angle.
• The Cosine Addition Formulas - Problem 1

How to use the cosine of a difference formula to simplify an expression or to find the cosine of an angle.
• The Sine Addition Formulas - Problem 1

How to use the sine of a sum formula to simplify an expression or to find the sine of an angle.
• The Cosine Addition Formulas - Concept

How to derive the cosine of a difference formula.
• Addition and Subtraction with Decimals - Problem 3

Math›Pre-Algebra›Decimals and Percents
Word problem relating adding decimals to racing times
Tags:

Tags:
• Addition and Subtraction with Decimals - Problem 1

Math›Pre-Algebra›Decimals and Percents
Adding decimals by vertically aligning the decimal point and adding zeros to make them the same length
Tags:
• The Sine Addition Formulas - Problem 2

How to derive the sine of a difference formula and use it to find the sine of an angle.
• The Sine Addition Formulas - Problem 3

How to evaluate sin(a ? b) and sin(a + b) when you know only cos(a) and sin(b).
• Addition and Subtraction with Mixed Numbers - Problem 3

Math›Pre-Algebra›Fractions and MIxed Numbers
Estimating sums and differences of mixed numbers
Tags:
• The Cosine Addition Formulas - Problem 2

How to derive the cosine of a sum formula and use it to find the cosine of an angle.
• Addition and Subtraction with Mixed Numbers - Problem 2

Math›Pre-Algebra›Fractions and MIxed Numbers
Word problem involving adding mixed numbers
Tags:
• The Cosine Addition Formulas - Problem 2

How to derive the cosine of a sum formula and use it to find the cosine of an angle.
• Addition and Subtraction with Decimals - Problem 2

Math›Pre-Algebra›Decimals and Percents
Subtracting decimals by vertically aligning the decimal point and adding zeros to make them the same length
Tags: