List of top Mathematics Questions on Algebra asked in MHT CET

$\lim_{x \to 0} \frac{|x|}{|x| + x^2} =$}

$\lim_{x \to 0} \frac{|x|}{|x| + x^2} =$}

If $\sum_{r=1}^{50} \tan^{-1}\frac{1}{2r^{2 = p}}$ then $\tan p$ is