Question

simplify tan^2 theta +1/ 1 + cot^2 theta

Answer 1

$\tan^{2} (a) + 1 \div 1 + \cot ^{2} (a)$
$= \sec^{2} (a) \div \cosec {}^{2} (a)$
$= 1 \div \cos {}^{2} (a) \times \sin ^{2} (a)$
$= \sin {}^{2} (a) \div \cos {}^{2} (a)$
$= \tan {}^{2} (a)$
I hope it will be the answer