2012 · Q30
If the sum of an integer and its reciprocal is 10/3, then the integer is equal to:
Elementary MathematicsAlgebra
- A3
- B6
- C12
- D13
Explanation
n+1/n = 10/3 gives 3n^2-10n+3 = 0, so n = 3 (the integer root).
If the sum of an integer and its reciprocal is 10/3, then the integer is equal to:
Explanation
n+1/n = 10/3 gives 3n^2-10n+3 = 0, so n = 3 (the integer root).