Trigonometric Identities; Exact Value

Use trigonometric identities to find the exact value of the attached equation. Which of the attached answers is correct?

Identity

Find the exact value by using a sum or difference identity. Which is the correct answer? cos 20 cos 25 - sin 20 sin 25 (angles are in degrees) 1 -√2/2 √2/2 √3/2

Trigonometry

Give the amplitude or period as requested. Which is the correct answer? Amplitude of y = 4 sin x 4л л/4 4 2л

Trigonometry

Factor the trigonometric expression. Which is the correct answer? sin2x + sin2x cot2x cot2x - 1 sin2x + 1 cot2x + 1 1

Trigonometry - Match Functions With Graphs

Match the attached functions with their graphs. Thank you..

Trigonometry - Graphing a Function

Graph the attached function (which of the attached graphs is correct?)

Trigonometry - Graphing a Function

Graph the attached function (which of the graph options are correct?)

Solving a Trigonometric Equation by Factoring

See attach file. Thanks.

Inverse Circular Functions and Trigonometric Equations

1. Solve 2√3 sin x/2 = 3, giving all solutions in radians. Please show each step on how to get the correct answer. (see attachement)

Inverse Circular Functions and Trigonometric Equations

See attached file.