Calculate ( d dx ( _ 1 ^ x^ 2 +3 t^ 2 +1 ,dt )

MATHEMATICS · Subjective · CBSE · Mathematics · Integrals · Integrals

Problem

Calculate

\displaystyle \frac{d}{dx}\left(\int_{1}^{x^{2}+3} \sqrt{t^{2}+1}\,dt\right).