bantu kakkaakakakkakaka.... Question from @Clazoraantariksa

ByZila

Penjelasan dengan langkah-langkah:

$\sf = \frac{5}{ \sqrt{10} + \sqrt{5} }$

$\sf = \frac{5}{ \sqrt{10} + \sqrt{5} } \times \frac{ \sqrt{10} - \sqrt{5} }{ \sqrt{10} - \sqrt{5} }$

$\sf = \frac{5( \sqrt{10} - \sqrt{5}) }{( \sqrt{10} + \sqrt{5})( \sqrt{10} - \sqrt{5} ) }$

$\sf = \frac{5( \sqrt{10} - \sqrt{5} )}{ 10 - 5 }$

$\sf = \frac{5( \sqrt{10} - \sqrt{5} )}{ 5 }$

$\sf = \sqrt{10} - \sqrt{5}$

---------------------

$\sf = \frac{3}{ \sqrt{7} - \sqrt{2} }$

$\sf = \frac{3}{ \sqrt{7} - \sqrt{2} } \times \frac{ \sqrt{7} + \sqrt{2} }{ \sqrt{7} + \sqrt{2} }$

$\sf = \frac{3( \sqrt{7} + \sqrt{2} ) }{ (\sqrt{7} - \sqrt{2})( \sqrt{7} \sqrt{2} ) }$

$\sf = \frac{3 \sqrt{7} + 3 \sqrt{2} }{ 7 - 2 }$

$\sf = \frac{3 \sqrt{7} + 3 \sqrt{2} }{ 5 }$

1 votes Thanks 1

yohanaokta69

Jawaban:

6. √10 - √5

7. 3√7 + 3√2 / 5

Penjelasan dengan langkah-langkah:

Terlampir.

Semoga membantu

Mohon maaf jika salah

Semangat belajar

1 votes Thanks 1