bantu jawab 2-5 pakai cara yang lengkap .... Question from @ulum4161

$2. \: \frac{ \sqrt{2} }{ \sqrt{5} } =\frac{ \sqrt{2} }{ \sqrt{5} } \times \frac{ \sqrt{5} }{ \sqrt{5} } = \frac{ \sqrt{10} }{5}$

$3. \: \frac{ - 5}{ \sqrt{6} } = \frac{ - 5}{ \sqrt{6} } \times \frac{ \sqrt{6} }{ \sqrt{6} } = \frac{ - 5 \sqrt{6} }{6}$

$3. \: \frac{3}{2 + \sqrt{2} } = \frac{3}{2 + \sqrt{2} } \times \frac{2 - \sqrt{2} }{2 - \sqrt{2} } = \frac{5 \times (2 - \sqrt{2} )}{4 - 2} = \frac{10 - 5 \sqrt{2} }{2}$

$5. \: \frac{3}{ \sqrt{6} + 3 } = \frac{3}{ \sqrt{6} + 3 } \times \frac{ \sqrt{6} - 3 }{ \sqrt{6} - 3 } = \frac{3( \sqrt{6} - 3) }{6 - 9} = \frac{3( \sqrt{6} - 3) }{ - 3} = - ( \sqrt{6} - 3) = 3 - \sqrt{6}$

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indahdwis011

Jawaban:

2. √15/5

3. -5√6/6

4. 3(2-√2)/2

5. (√6-3)/5

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