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4787900-330835Trigonometric IdentitiesAn “Identity” is a math statement that is ALWAYS true. The left-hand side and the right-hand side of the equation can be substituted for each other as needed.Partial List of Identitiessin2x + cos2x = 1cos2x = 1- sin2xsin2x = 1- cos2xtanx= sinxcosx tanx= 1cotxcotx= cosxsinx cotx= 1tanxcscx= 1sinx sinx= 1cscxsecx= 1cos x cosx= 1secx1+ cot2x= csc2x ( divide 1st equation by sin2x )1= csc2x- cot2xcot2x= csc2x-1tan2x+1 = sec2x ( divide 1st equation by cos2x )tan2x= sec2x-11 = sec2x- tan2xThe Point??? Identities simplify messy equations when people are solving trigonometric-related problems.00Trigonometric IdentitiesAn “Identity” is a math statement that is ALWAYS true. The left-hand side and the right-hand side of the equation can be substituted for each other as needed.Partial List of Identitiessin2x + cos2x = 1cos2x = 1- sin2xsin2x = 1- cos2xtanx= sinxcosx tanx= 1cotxcotx= cosxsinx cotx= 1tanxcscx= 1sinx sinx= 1cscxsecx= 1cos x cosx= 1secx1+ cot2x= csc2x ( divide 1st equation by sin2x )1= csc2x- cot2xcot2x= csc2x-1tan2x+1 = sec2x ( divide 1st equation by cos2x )tan2x= sec2x-11 = sec2x- tan2xThe Point??? Identities simplify messy equations when people are solving trigonometric-related problems.-220980-340360Trigonometric IdentitiesAn “Identity” is a math statement that is ALWAYS true. The left-hand side and the right-hand side of the equation can be substituted for each other as needed.Partial List of Identitiessin2x + cos2x = 1cos2x = 1- sin2xsin2x = 1- cos2xtanx= sinxcosx tanx= 1cotxcotx= cosxsinx cotx= 1tanxcscx= 1sinx sinx= 1cscxsecx= 1cos x cosx= 1secx1+ cot2x= csc2x ( divide 1st equation by sin2x )1= csc2x- cot2xcot2x= csc2x-1tan2x+1 = sec2x ( divide 1st equation by cos2x )tan2x= sec2x-11 = sec2x- tan2xThe Point??? Identities simplify messy equations when people are solving trigonometric-related problems.00Trigonometric IdentitiesAn “Identity” is a math statement that is ALWAYS true. The left-hand side and the right-hand side of the equation can be substituted for each other as needed.Partial List of Identitiessin2x + cos2x = 1cos2x = 1- sin2xsin2x = 1- cos2xtanx= sinxcosx tanx= 1cotxcotx= cosxsinx cotx= 1tanxcscx= 1sinx sinx= 1cscxsecx= 1cos x cosx= 1secx1+ cot2x= csc2x ( divide 1st equation by sin2x )1= csc2x- cot2xcot2x= csc2x-1tan2x+1 = sec2x ( divide 1st equation by cos2x )tan2x= sec2x-11 = sec2x- tan2xThe Point??? Identities simplify messy equations when people are solving trigonometric-related problems. ................
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