$\left(\operatorname{cosec}^{2} \theta \tan \theta+\sec ^{2} \theta \cot \theta\right)$ এর সমান –

$2 \sin \theta \cos \theta$

$\sin \theta \cos \theta$

$2 \sec \theta \operatorname{cosec} \theta$

$\sec \theta \operatorname{cosec} \theta$