Mathsfreak
Most popular questions and responses by Mathsfreak
mathematics
It can be shown that for any positive integer n, the infinitely nested radical expression (n+(n+(n+....)^1/2)^1/2)^1/2 equals a finite number. What is the largest positive integer n≤999 such that this expression is equal to a positive integer? Details
asked on April 18, 2013 
mathematics
Let A be a subset of T={1,2,…,100} subject to the condition that if 2 distinct elements a and b are in A, then a+b is not in A. What is the maximum value of A, which is the number of elements in A?
asked on April 30, 2013 
mathematics
x,y and z are complex numbers that satisfy the equations x+y+z=2, xy+yz+zx=3 and xyz=4. Given that 1/(1−x−yz)+1(1−y−zx)+1(1−z−xy)=ab, where a and b are coprime positive integers, what is the value of a+b?
asked on April 18, 2013 
Maths
There are 100 runners, each given a distinct bib labeled 1 to 100. What is the most number of runners that we could arrange in a circle, such that the product of the numbers on the bibs of any 2 neighboring runners, is less than 1000?
asked on April 18, 2013

algebra
the term is (x^2 + 2x 1)^8 :)
posted on April 29, 2013 
Physics :(( help please TT
Right answer please
posted on April 25, 2013 
Physics
Still a simple careless mistake : 19972=0.0028 nt 27.:)
posted on April 24, 2013 
math
17
posted on April 24, 2013 
Maths
Mind ur language,geezer.What on this earth is Brilliant anyways.Please check out 'The 1001 combinatorics problems' by 'Springer' problem #79 before blaming me..........:p
posted on April 19, 2013 
Maths
In any order ,I guess, as it hasn't been particularly specified!The question is an exact copy from the springer book on 'Combinatorics'.
posted on April 18, 2013 
mathsurgent
Well............u cheat quite well.Should I report this to the authorities? :p
posted on April 18, 2013 
probability
496...............:)
posted on April 18, 2013 
Maths
I tried using circular permutations......but the answer didn't tally.Also..............31 is a wrong answer
posted on April 18, 2013 
Physics :(( help please TT
Check ur answer
posted on April 18, 2013 
mathematics
answer ?
posted on April 18, 2013 
math
15................apply vieta's rule . :))))))))
posted on April 17, 2013