Sederhanakan bentuk akar berikut.
1. √28/25
2. √4/45
3. √72/196
4. √81/216
tolong di jawab ya..![]()
1. √28/25
2. √4/45
3. √72/196
4. √81/216
tolong di jawab ya..
Jawaban:
[tex] \sqrt{ \frac{28}{25} } = \sqrt{ \frac{4 \times 7}{ {5}^{2} } } = \sqrt{ \frac{ {2}^{2} \times 7 }{ {5}^{2} } } = \frac{2}{5} \sqrt{7} [/tex]
[tex] \sqrt{ \frac{4}{45} } = \sqrt{ \frac{ {2}^{2} }{9 \times 5} } = \sqrt{ \frac{ {2}^{2} }{ {3}^{2} \times 5 } } = \frac{2}{5} \sqrt{ \frac{1}{5} } = \frac{2}{5} \sqrt{ {5}^{ - 1} } [/tex]
[tex] \sqrt{ \frac{72}{196} } = \sqrt{ \frac{36 \times 2}{ {14}^{2} } } = \frac{6}{14} \sqrt{2} = \frac{3}{7} \sqrt{2} [/tex]
[tex] \sqrt{ \frac{81}{216} } = \sqrt{ \frac{ {9}^{2} }{ \ {6}^{3} } } = \frac{9}{6} \sqrt{ \frac{1}{6} } = \frac{3}{2} \sqrt{ {6}^{ - 1} } [/tex]
[answer.2.content]
