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NDA Math Miscellaneous

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Question : 15

Total: 24

If |a| denotes the absolute value of an integer, then which of the following are correct?
I. |ab|=|a||b|
II. |a+b|≤|a|+|b|
III. |a−b|≥|a|−|b|
Select the correct answer using the code given below.

1 and 2 only
2 and 3 only
1 and 3 only
1, 2, and 3

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