Here are some videos on Solving Trigonometric Equations
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Video 1 clearly explains how to solve basic trigonometric equations and also explains the General Solution of trigonometric equations very clearly by referring to the graph.
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Video 1
Video 2
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Video 2 goes through solving trigonometric equations of the form sin(ax)=c where you need to change the domain
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Rarely, but sometimes, you might get a trigonometric equation which is a quadratic in sin(x) or cos(x) and you need to factorize it first. Video 3 explains how to do this.
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Video 3
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Video 4 is by a Victorian teacher and explains really well the meaning of the general solution for trigonometric equations."Please note a couple of errors. At 3.37 I say that the second soln is 6pi/3. It should be 4pi/3 and the same at 4.04, my first soln is -6pi/3 and it should be -4pi/3." |
Video 4
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Video 5 also goes through general solutions and shows how to get the general solutions quickly
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