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Trig Identities Worksheet 7.3Prove each identity:secx-tanxsecx=1secx1+cosx sinx =cscx+cotxsecθsinθtanθ+cotθ=sin2 θsecθcosθ-tanθcotθ=1cos 2x- sin2x=1-2sin2xcsc 2xtan2x-1=tan2xsec2θsec2θ-1=csc2θtan2xsin2x=tan2x-sin2xProve each identity:sinθ+cosθ2+sinθ-cosθ2=2sinx+cosxtanx+cotx=secx+cscxtanθ-1tanθ+1=1-2sinx cos x1-tan2x1+tan2x=1-2sin2x cosx+1sin 3x=cscx1-cosxcsc 4x-cot4x=csc2x+cot2xtanθsecθ+cotθcscθ=sinθ+cosθsinx+tanx1+secx=sinx ................
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