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Inverse Quadratic Sum Puzzle (Posted on 2015-07-09) Difficulty: 3 of 5
Determine the value of A2 + B2 + C2 + D2, given that the following set of four equations are satisfied simultaneously:
  
   A2       B2       C2       D2
 ------ + ------ + ------ + ------ = 1
  22-1    22-32    22-52     22-72

   A2       B2       C2       D2
 ------ + ------ + ------ + ------ = 1
  42-1    42-32    42-52     42-72

   A2       B2       C2       D2
 ------ + ------ + ------ + ------ = 1
  62-1    62-32    62-52     62-72
   A2       B2       C2       D2
 ------ + ------ + ------ + ------ = 1
  82-1    82-32    82-52     82-72

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Solutionsteps with some internet helpCharlie2015-07-09 12:56:06
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