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Pouvais vous m aider a faire ceci

2√3÷√5-√3                                                                                                                                                    




Sagot :

.. (3/5) + (2/3)
= (3*3 + 2*5) / (5*2)
= (9 + 10) / (10)
= 19/10
[tex] \frac{2 \sqrt{3}}{ \sqrt5- \sqrt{3}} } [/tex]

= [tex] \frac{(2 \sqrt{3)}( \sqrt{5} + \sqrt{3} )}{ (\sqrt5- \sqrt{3)}(\sqrt5+ \sqrt{3)} } [/tex]

= [tex] \frac{(2 \sqrt{3)}( \sqrt{5} + \sqrt{3} )}{ 5 - 3} } [/tex]

= [tex] \frac{2 \sqrt{15} + 6}{ 2} } [/tex]

= [tex] \frac{2 \sqrt{15}}{ 2} } + \frac{ 6}{ 2} } [/tex]

= [tex]{\sqrt{15} + 3[/tex]