Something Beyond Reach
Calculus
Level
4
\[\displaystyle \lim_{n \to \infty}\sum^{n}_{r=0} \bigg (\frac{1}{4r+1}-\frac{1}{4r+3} \bigg ) = \ ? \]
Refer to my set Some JEE problems or see this problem
by
Tanishq Varshney