SOLUTION: Which is equal to an integer ? A , B , C or D. Link to question (can't type on here). thanks! http://prntscr.com/9hvgbl

Algebra ->  Expressions-with-variables -> SOLUTION: Which is equal to an integer ? A , B , C or D. Link to question (can't type on here). thanks! http://prntscr.com/9hvgbl      Log On


   

Question 1011452: Which is equal to an integer ? A , B , C or D.
Link to question (can't type on here).
thanks!
http://prntscr.com/9hvgbl
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

none of these is an integer

Answer by ikleyn(52878) About Me  (Show Source):
You can put this solution on YOUR website!
.
A) sqrt%282%29 . root%283%2C16%29 . root%286%2C2%29 = 2^(1/2 + 4/3 + 1/6) = 2%5E%281%2F2+%2B+4%2F3+%2B+1%2F6%29 = 2%5E2 = 4  is an integer.  <-----  1%2F2+%2B+4%2F3+%2B+1%2F6 = 3%2F6+%2B+8%2F6+%2B+1%2F6 = %283+%2B+8+%2B+1%29%2F6 = 12%2F6 = 2.