$$\tan ( \theta )=7/24 \sec ( \theta )$$
$\theta =2\pi n_{1}+\arcsin(\frac{7}{24})\text{, }n_{1}\in \mathrm{Z}$
$\theta =2\pi n_{2}+\pi -\arcsin(\frac{7}{24})\text{, }n_{2}\in \mathrm{Z}$
