Question

calculati |1+2 radical din 3|+|13-2 radical din 3|-|5+radical din 9|

Answer 1

$|1 + 2 \sqrt{3} | + |13 - 2 \sqrt{3} | - |5 + \sqrt{9} | \\ 1 + 2 \sqrt{3} + 13 - 2 \sqrt{3} - |5 + 3| \\ 1 + 13 - |8| \\ 1 + 13 - 8 \\ 6$