(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

(b) Solve, for 0 <= x < 360°, the equation

2tan²x + secx = 1,

2. Relevant equations

I think I have to solve it quadratically but I need to get the trigs to the same trig form

3. The attempt at a solution

[tex]2\frac{sin^{2}x}{cos^{2}x} + \frac{1}{cosx} = 1[/tex]

but I cant see any other logical step after that?

Thanks :)

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# Solving trig equation for giving range

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