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Trigonometric Identity in Double Angle (sin2x - cos2x + 1)/sin2x + cos2x - 1) = sec2x + tan2x
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#SumToProductTrigIdentity #CompoundAngleIdentities #EquivalentTrigonometricExpressions #mhf4utrigonometry #CofunctionIdentity #relatedAcuteAngle #mhf4u_trigonometry #trigonometric_identities_Test #CompoundAngle #LinearTrigonometricEquations #QuadraticTrigonometricEquations