5.2 Verifying Trig Identities

Front

What is the definition of a trigonometric identity?

Back

A trigonometric identity is an equation involving trigonometric functions that is true for all values of the variable where both sides of the equation are defined.

Front

What is the Pythagorean identity?

Back

Front

How do you verify a trigonometric identity?

Back

To verify a trigonometric identity, manipulate one side of the equation using algebraic identities and trigonometric identities until it matches the other side.

Front

What is the difference between sine and cosine?

Back

Front

What is the cotangent function?

Back

Front

What is the secant function?

Back

Front

What is the cosecant function?

Back

Front

What is the relationship between tangent and cotangent?

Back

Front

What is the formula for the difference of squares?

Back

Front

How do you simplify the expression (sec x - 1)(sec x + 1)?

Back