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Help me solv this?
If both x and y are positive integers then which of the following expressions must also be even?
i.. y^x-1
ii.y-1
iii. x/2
(a) i only
(b) ii only
(c) iii. only
(d) i and iii only
(e) i, ii, and iii
- by disturbedmimi
Thu Sep 06, 2012 7:01 pm- Forum: Problem Solving
- Topic: Help me solv this?
- Replies: 5
- Views: 1217