If |a| denotes the absolute value of an integer, then which of the following are correct?
1. |ab| = |a||b|
2. |a+b| ≤ |a|+|b|
3. |a-b| ≥ ||a|-|b||
Select the correct answer using the code given below.
Mathematics
2017
NDA Mathematics 2017
NDA 2017
Options
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