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  1. Use identities to find the value of each expression. 1) If sin , find cos ( 2) If tan ( ) , find cot (

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  3. Worksheet by Kuta Software LLC-3-Answers to Verifying Identities 1) sinx + cscx cscx Decompose into sine and cosine sinx + 1 sinx 1 sinx Simplify sin2x + 1 2) cotx - sinxDecompose into sine and cosine cosx sinx - sinxSimplify cosx - sin2x sinx 3) 1 - cscx cscx Decompose into sine and cosine 1 - 1 sinx 1 sinx Simplify sinx - 1 4) 1 1 + tanx

  4. Create your own worksheets like this one with Infinite Precalculus. Free trial available at KutaSoftware.com

  5. Indefinite integrals. Free Precalculus worksheets created with Infinite Precalculus. Printable in convenient PDF format.

  6. 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

  7. Verifying Trig Identities. Date________________ Period____. Verify each identity. Work on the left side only. Give a reason for each step. 1) cot2 x - tan2 x = csc2 x - sec2 x. 2) sin xsec x = tan x. cos2 x sin x. 3) = csc x sec2 x.

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