- #1
sara_87
- 763
- 0
1) proe that for all non-negative real numbers x and y:
xy(<or=)((x+y)/2)^2
2) prove that the sum of 2 prime numbers strictly greater than 2 is even
3) If n is a multiple of 3 then either n is odd or it is a multiple of six.
I don't know how to start any of them. any hints would be v much appreciated.
xy(<or=)((x+y)/2)^2
2) prove that the sum of 2 prime numbers strictly greater than 2 is even
3) If n is a multiple of 3 then either n is odd or it is a multiple of six.
I don't know how to start any of them. any hints would be v much appreciated.