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Use identities to find the value of each expression. 1) If sin , find cos ( 2) If tan ( ) , find cot (
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Use the angle difference identity to find the exact value of each. Use the angle sum or difference identity to find the exact value of each. Create your own worksheets like this one with Infinite Algebra 2. Free trial available at KutaSoftware.com.
Kuta Software - Infinite Algebra 2 Name_____ Double- and Half-Angle Identities Date________________ Period____ Use a double-angle identity to find the exact value of each expression.
Answers to Verifying Identities. sin x + csc x. 1) csc x. Decompose into sine and cosine. 1. +. sin x sin x. Simplify. 1.
Answers to Worksheet Review Trig. Identities (basic) (ID: 1) tan2 x - sec2 x. 1) cos x. Use tan2 x + 1 = sec2 x. 1. - cos x. 1. Use sec x = cos x. -sec x sec x.
Trigonometric Equations. 1. Find all values of x for which 2 cos x 3 . 2. Solve 2 sin 3 0 , if 0 x 360 . 2 3. Solve 2 cos t 9co s t 5 , if 0 t 2 . 4. Solve 2 sin 2 2s in 1 0 , if 0 2 .
