Download Review Chapter 5

Review Chapter 5 – Pre-Calculus II
Complete the identity.
Identify α and β in the following expression which is the right side of the formula for cos (α - β).
Find the exact value by using a sum or difference identity.
Use trigonometric identities to find the exact value.
Use the figure to find the exact value of the trigonometric function.
Use a half-angle formula to find the exact value of the expression.
Express the product as a sum or difference.
Solve the problem. Sum to Product
Use substitution to determine whether the given x-value is a solution of the equation.
Solve the equation on the interval [0, 2π). Remember where functions are positive or negative
Use a calculator to solve the equation on the interval [0, 2π). Round the answer to two decimal places.
Remember to check the mode that your calculator is set in
Write the expression as the sine, cosine, or tangent of a double angle. Then find the exact value of the expression.
Rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater
than 1. Power Reducing
Solve the problem. Use the Sum-to-Product Formula
Solve the equation on the interval [0, 2π). Factoring
Solve the equation on the interval [0, 2π). Factoring
Use a calculator to solve the equation on the interval [0, 2π). Round the answer to two decimal places.
Solve the equation on the interval [0, 2π).
Use a calculator to solve the equation on the interval [0, 2π). Round the answer to two decimal places.
Solve the word problem. (voltage)