Trigonometry formula

$\mathbf{s}\mathbf{i}\mathit{n}\mathbf{\theta }\mathbf{=}\frac{\mathbf{p}}{\mathbf{h}}\left(\frac{\mathbf{l}\mathbf{a}\mathbf{m}\mathbf{h}}{\mathbf{k}\mathbf{a}\mathbf{r}\mathbf{n}}\right)$
$\mathbf{cos}\mathbf{\theta }\mathbf{=}\frac{\mathbf{b}}{\mathbf{h}}\left(\frac{\mathbf{b}\mathbf{a}\mathbf{s}\mathbf{e}}{\mathbf{h}\mathbf{y}\mathbf{p}\mathbf{o}\mathbf{t}\mathbf{e}\mathbf{n}\mathbf{u}\mathbf{s}}\right)$