administrators Reply Quote

Answer : 1 87 Explanation : Answer: A) 87 Explanation: Cp1 = p2 - p1 , Cp2 = p3 - p2 ......Cp23 = p24 - p23Sum of series = (p2-p1) (p3-p2) .....(p23-p22) (p24-p23)All terms get cancelled, except p1 = 2 and p24 = 89 So Sum = -p1 p24Sum of series = -2 89 = 87

Click here to see the full blog post