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Use identities to find the value of each expression. 1) If sin , find cos ( 2) If tan ( ) , find cot (
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.
Create your own worksheets like this one with Infinite Precalculus. Free trial available at KutaSoftware.com
-1-Verify each identity. 1) sinx + cscx cscx = sin2x + 1 2) cotx - sinx = cosx - sin2x sinx 3) 1 - cscx cscx = sinx - 1 4) 1 1 + tanx = cosx cosx + sinx 5) cot2x (1 + cot2x) = 1 tan2xsin2x
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.
Trig Prove each identity; 1 . 1 . secx - tanx SInX - - secx 3. sec8sin8 tan8+ cot8 sin' 8 5 . cos ' Y -sin ., y = 12" - Sin Y 7. sec2 e --sec2 e-1 csc2 e Identities worksheet 3.4 name: 2. 1 + cos x = esc x + cot x sinx 4. sec8 tan8 1 -----= cos8 cot8 6. csc2 e ... Trig Identity Quiz Prove the following identity 1) 2 cos etan ecsc e= 2 2) ...
Worksheet by Kuta Software LLC-3-Answers to Worksheet Review Trig. Identities (basic) (ID: 1) 1) tan2x - sec2x cosx Use tan2x + 1 = sec2x-1 cosx Use secx = 1 cosx-secx 2) tanx + secxDecompose into sine and cosine sinx cosx + 1 cosx Simplify 1 + sinx cosx 3) secx sin3x Use cscx = 1 sinx csc3xsecxUse secx = 1 cosx csc3x cosx
