بِسْـــــــمِ اللّٰهِ الرَّحْمٰنِ الرَّحِيْمِ
..
Jawaban:
[tex] = \frac{10 - 2 \sqrt{2} }{23} \\ [/tex]
Penjelasan dengan langkah-langkah:
[tex] \frac{2}{5 + \sqrt{2} } \\ [/tex]
[tex] = \frac{2}{5 + \sqrt{2} } \times \frac{5 - \sqrt{2} }{5 - \sqrt{2} } \\ [/tex]
[tex] = \frac{2(5 - \sqrt{2} )}{(5 + \sqrt{2})(5 - \sqrt{2}) } \\ [/tex]
[tex] = \frac{10 - 2 \sqrt{2} }{25 - 5 \sqrt{2} + 5 \sqrt{2} - 2} \\ [/tex]
[tex] = \frac{10 - 2 \sqrt{2} }{25 - 2} \\ [/tex]
وَاللّٰهُ اَعْلَمُ بِاالصَّوَافَ
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بِسْـــــــمِ اللّٰهِ الرَّحْمٰنِ الرَّحِيْمِ
..
Jawaban:
[tex] = \frac{10 - 2 \sqrt{2} }{23} \\ [/tex]
Penjelasan dengan langkah-langkah:
[tex] \frac{2}{5 + \sqrt{2} } \\ [/tex]
[tex] = \frac{2}{5 + \sqrt{2} } \times \frac{5 - \sqrt{2} }{5 - \sqrt{2} } \\ [/tex]
[tex] = \frac{2(5 - \sqrt{2} )}{(5 + \sqrt{2})(5 - \sqrt{2}) } \\ [/tex]
[tex] = \frac{10 - 2 \sqrt{2} }{25 - 5 \sqrt{2} + 5 \sqrt{2} - 2} \\ [/tex]
[tex] = \frac{10 - 2 \sqrt{2} }{25 - 2} \\ [/tex]
[tex] = \frac{10 - 2 \sqrt{2} }{23} \\ [/tex]
..
وَاللّٰهُ اَعْلَمُ بِاالصَّوَافَ