Section 5 – Solving Trig Equations

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Presentation transcript:

Section 5 – Solving Trig Equations Chapter 7 Section 5 – Solving Trig Equations

Trigonometric Equations You solve trig equations the same way you solve any other algebraic equations, with the added piece of LOOKING FOR IDENTITIES!!! Substitute identities to simplify wherever possible

Trigonometric Equations Realize, any algebra is fair game! In addition to identities, You may have to use: Distributive Property Factoring Rationalizing Denominators Etc. + remember to look for ALL Possible solutions!!

Examples EX 1: Solve (sinx)(cosx)-(1/2)(cosx)=0 EX 2: Solve cos2x – cosx + 1 = sin2x EX 3: Solve 2sec2x – tan4x = -1

Assignment Chapter 7, Section 5 pgs 459-461 #18-26E,32,38-40E