2013 · Q26
If k is a positive integer, then every square integer is of the form
Elementary MathematicsNumber System
- A4k only
- B4k or 4k+3
- C4k+1 or 4k+3
- D4k or 4k+1
Explanation
Squares mod 4 are 0 or 1. Answer D.
If k is a positive integer, then every square integer is of the form
Explanation
Squares mod 4 are 0 or 1. Answer D.