Question

with explanation please

Answer 1

Hello Dear Here is u r Ans ➡➡➡
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1》》》
$= 5 - 8 \sqrt{5} \\ = - 12.88854$

2》》》
$= (3 + \sqrt{27)} - ( \sqrt{12} + \sqrt{3} ) \\ = (3 + 3 \sqrt{3} ) - (2 \sqrt{3} + \sqrt{3} )$

$= (3 + 3 \sqrt{3} ) - (2 \sqrt{3} + \sqrt{3} )$

$= 3$

3》》》

$= \frac{5 \sqrt{10} }{3 \sqrt{10} }$

$= \frac{5}{3}$

4》》》

$= \frac{6}{ \sqrt{5} }$

$= \frac{6 \sqrt{5} }{ \sqrt{5} \sqrt{5} }$

$= \frac{6 \sqrt{5} }{5}$

$= 2.68328 \: {in \: decimal}$
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