Inequality 2: For a and b positive integers , show that a+b≤2ab

[Roger.Robert]

For a and b positive integers , show that \(\displaystyle a+b \leq 2ab \)

 

[Dr.Peterson]

For a and b positive integers , show that \(\displaystyle a+b \leq 2ab \)

Try dividing both sides by ab, and see if you can make the inequality equivalent to one that is known to be true. Then you can reverse your steps to show that it can be derived from that true fact.