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how to solving trigonometric equations. This video shows how to solve trig equations using the CAST diagram. Solve the equation on the interval 0 2 pi.
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Solving basic trig equations proceeds by studying the various positions of. Solve2 cos 2 x 3 cos x 0mathbf color green small 2 cos2 mathit x - sqrt 3 cos mathit x 0 2cos2x 3 cosx0 on the interval 0 x 360. The various trigonometric formulae and identities can be used to help solve trigonometric equations.
In fact we use algebraic techniques constantly to simplify trigonometric expressions.
They are the basic tools of trigonometry used in solving trigonometric equations just as factoring finding common denominators and using special formulas are the basic tools of solving algebraic equations. Ask Question Asked today. Using p instead of degrees the solutions can be written like. Square root 2 cos2 phi equals 1.
