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Simplify the expression. secx cscx cosx csc2x tanx sinx secx -cosx tanx Simplify sinx tanx cosx cos2x For each expression in Column I, choose the expression in Column II that completes an identity. tanxcscx cosx/sinx cos(-x) sin2x Column I type letter in box E. cscx C. secx D. 1-cos2x A. cosx B. 1/tanx Column II -1+sin2x -tanxcosx sec2x -1 cscx/secx tanx/sec(-x) Column I For each expression in Column I, choose the expression in Column II that completes an identity. Type LETTER in the box. D. sin2x/cos2x C. sinx E. cotx B. sin(-x) A. -cos2x Column II Simplify cotxsecx cscx cosxsinx 1 1/sinxcscx cos2x/sinx Simplify tanx cscx sinx/cosx sin2x sin2x/cosx 1/cosx Simplify SinβTanβ+Cosβ CosxSinx Secx 1/Cos2x Sin2x/Cosx Simplify tan4x+2tan2x+1 2tan2x+1 sec2x-1 tan2x+1 sec4x Simplify csc3x-csc2x-cscx+1 cscx+1 1 cot2x(cscx-1) cos2x(sinx-1) Simplify 1 + 1 1+cosx 1-cosx
2sin2x 2csc2x 2sec2x 2cos2x Simplify sin2x 1-cosx 1+cosx sin2x(1+cosx) sin2x/cosx 1+sinx |