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Precalculus Mathematics Homework Help
Finding sum of roots of trigonometric equation
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[QUOTE="Fightfish, post: 5447567, member: 193649"] The trick here, I believe, is to realize that reduction of the [itex]33x[/itex] is probably not a feasible option at all - so what you want to get in the end is not a quadratic or polynomial equation, but [I]a simple product of trigonometric functions being equal to a nice number[/I]. So the hint is to use the trigonometric identity [itex]\sec^2 33x = 1 + \tan^2 33x[/itex] and keep the [itex]\cos 2x[/itex] term as it is. [B]Edit: I realized a much much simpler method. Note that the LHS is [itex]\geq 0[/itex]. How about the RHS? This gives you the answer rightaway.[/B] [/QUOTE]
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Precalculus Mathematics Homework Help
Finding sum of roots of trigonometric equation
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