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Mathematics 7 Online
OpenStudy (anonymous):

6/sqrt3+2

OpenStudy (ash2326):

We have \[\frac{6}{\sqrt {3}}+2\] \[6=3 \times 2\] so \[\frac{3 \times 2}{\sqrt {3}}+2\] Also \[3= \sqrt 3 \times \sqrt 3\] so \[\frac{ \sqrt 3 \times \sqrt 3 \times 2}{\sqrt {3}}+2\] We get finally \[2\sqrt 3+2\] or \[2(1+\sqrt 3)\]

OpenStudy (anonymous):

The sqrt of 3+2 is both divided into 6 6/(sqrt3+2)

OpenStudy (ash2326):

Is this your question \[\frac{6}{\sqrt{3}+2}\]

OpenStudy (anonymous):

yes

OpenStudy (ash2326):

Ok, We have \[\frac{6}{\sqrt 3+2}\] Multiply numerator and denominator by the conjugate of denominator \(\sqrt 3-2\) So we have \[\frac{6}{\sqrt 3+2} \times \frac{\sqrt 3 -2}{\sqrt 3-2}\] We get \[\frac{6 \sqrt 3 -12}{(\sqrt 3)^2-(2)^2} \] We get \[\frac{6 \sqrt 3 -12}{(3-4)} \] we get \[\frac{6 \sqrt 3 -12}{(-1)}\] Finally we get \[12-6 \sqrt 3\ or\ 6(2-\sqrt 3)\]

OpenStudy (anonymous):

Thank you!

OpenStudy (ash2326):

Welcome:D

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