Question
For what achievement did Indian Railways enter its name
into the Limca Book of Records?Solution
Indian Railways entered its name into the Limca Book of Records for having the most people at a public service event at multiple venues. This achievement highlights their ability to organize large-scale public service events across various locations simultaneously.
If (x2 + y2) = 9 and (xy)2 = 3, then find the value of (x4 + y4).
√4096 + √(?) + 13 – 29 = 148Â
If √r + (1/√r) = 4, then find the value of r + (1/r).

If x = 99, then the value of x5 - 100x4 + 100x3 - 100x2 + 100x - 1 is
Find the value of
(1 - Â `1/(p+1)` ) + (1 - `2/(p+1)` Â ) + (1 - `3/(p+1)` Â ) + ........................... + (1 - Â `p/(p+1)` )
If a + b + c = 8, a² + b² + c² = 18 and ab + b c+ ca = 12, then what is the value of a³ + b³ +c³ –3abc?
If (a + b) = 9 and (a2 + b2) = 53, then find the value of (a × b).
- If n = 1 + √2, then find the value of (n + 1/n)².
The graphs of the equations 3x-20y-2=0 and 11x-5y +61=0 intersect at P(a,b). What is the value of (a² + b² − ab)/(a² − b²...