Mathsfreak

Most popular questions and responses by Mathsfreak
  1. 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
  2. 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
  3. 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
  4. 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
  1. algebra

    the term is (x^2 + 2x -1)^8 :)

    posted on April 29, 2013
  2. Physics :(( help please TT

    Right answer please

    posted on April 25, 2013
  3. Physics

    Still a simple careless mistake : 1-9972=0.0028 nt 27.:)

    posted on April 24, 2013
  4. math

    17

    posted on April 24, 2013
  5. 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
  6. 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
  7. maths-urgent

    Well............u cheat quite well.Should I report this to the authorities? :p

    posted on April 18, 2013
  8. probability

    496...............:)

    posted on April 18, 2013
  9. Maths

    I tried using circular permutations......but the answer didn't tally.Also..............31 is a wrong answer

    posted on April 18, 2013
  10. Physics :(( help please TT

    Check ur answer

    posted on April 18, 2013
  11. mathematics

    answer ?

    posted on April 18, 2013
  12. math

    15................apply vieta's rule . :))))))))

    posted on April 17, 2013