$5 \tan ^{2} x-\sec ^{2} x=11$ হলে, $x=?$

$2 n \pi \pm \frac{\pi}{3}$

$\mathrm{n} \pi+(1) \frac{\mathrm{n} \pi}{3}$

$\mathrm{n} \pi \pm \frac{\pi}{3}$

$n \pi+\frac{\pi}{3}$