Please could I have some help :)

asked May 1, 2021 112k views

1 vote

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6 votes

Answer:

a)
$(√(15) )/(√(5))\cdot (√(5) )/(√(5))=(√(75) )/(5)=(5√(3))/(5)=√(3)$

or simply

$(√(15))/(√(5))=\sqrt{(15)/(5)}=√(3)$

b)
$(√(3)\:)/(√(6)) \cdot (√(6)\:)/(√(6))=(√(18) )/(6)=(3√(2) )/(6)=(√(2) )/(2)$

$(√(3))/(√(6))=\sqrt{(3)/(6)}=\sqrt{(1)/(2)}$

$\sqrt{(1)/(2)}=(√(2) )/(2)$

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