Question

Calculează :
$a) \: \sqrt{30} \div \sqrt{6}$
$b) \: \sqrt{6} \div \frac{1}{2}$
$c) \: ( - 8 \sqrt{3} ) \div (8 \sqrt{3} )$
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Answer 1

a ) √30 : √6 = √5

b ) √6 / 1 : 1 / 2 = √6 /  1 × 2 / 1 = 2√6

c ) (-8√3 ) : (8√3) = - 1

Answer 2

a) $\it \sqrt{30} : \sqrt{6} = \sqrt{5}$

b) $\it \sqrt{6} : \frac{1}{2} = \sqrt{6} \cdot 2 = 2\sqrt{6}$

c) $(-8\sqrt{3}) : (8\sqrt{3}) =   -1$