What is the method to solve for x in an equation such as Tan^2(x) = 2 or Tan^2(x)=5/2? All help much appreciated!
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Originally Posted by ILoveTriangles What is the method to solve for x in an equation such as Tan^2(x) = 2 or Tan^2(x)=5/2? All help much appreciated! $\displaystyle \tan^2(x)=a$ $\displaystyle \tan(x)=\pm \sqrt a$ $\displaystyle x_{1,2}=n\cdot \pi \pm \arctan(\sqrt a) ~\text{where}\ n \in \mathbb{Z}$
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