A.Perform the indicated operations
[tex]1.13 \sqrt{3} + 7 \sqrt{3} [/tex]
[tex]2.8 \sqrt{2} - \sqrt{2} [/tex]
[tex]3. \sqrt{3ab} \: \: \: . \: \: \sqrt{27a {}^{2} }b [/tex]
[tex]4. \frac{ \sqrt{48} }{ \sqrt{3} } [/tex]
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