Question
Who was the first Indian Paralympic gold medalist, and
in which event?Solution
Murlikant Petkar was India’s first Paralympic gold medalist. He won gold in Swimming at the 1972 Summer Paralympics.
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...