Tolong bantu yang bisa hehee.... Question from @Figothamyiz

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Eksponen dan Bentuk Akar

$\frac{3 \sqrt{3} + \sqrt{7} }{ \sqrt{7} - 2 \sqrt{3} } \\ \\ = \frac{3 \sqrt{3} + \sqrt{7} }{ \sqrt{7} - 2 \sqrt{3} } \times \frac{ \sqrt{7} + 2 \sqrt{3} }{ \sqrt{7} + 2 \sqrt{3} } \\ \\ = \frac{3 \sqrt{21} + 6 \times 3 + 7 + 2 \sqrt{21} }{7 - 4 \times 3} \\ \\ = \frac{5 \sqrt{21} + 18 + 7 }{7 - 12} \\ \\ = \frac{5 \sqrt{21} + 25}{ - 5} \\ \\ = - \sqrt{21} - 5 \\ = - 5 - \sqrt{21}$

Jawaban: C

*semoga membantu. sukses selalu ^_^

1 votes Thanks 1

RynPutrie 5√21 : (-5) = -√21 dan 25 : (-5) = -5. Jadi hasilnya digabung menjadi -√21 - 5

RynPutrie sama-sama :)

rhmarz10

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$= \frac{3 \sqrt{3} + \sqrt{7} }{ \sqrt{7} - 2 \sqrt{3} } \times \frac{ \sqrt{7} + 2 \sqrt{3} }{ \sqrt{7} + 2 \sqrt{3} } \\ = \frac{3 \sqrt{3} . \sqrt{7} + 3 \sqrt{3} .2 \sqrt{3} + \sqrt{7} . \sqrt{7} + \sqrt{7}.2 \sqrt{3} }{ \sqrt{7}. \sqrt{7} + \sqrt{7}.2 \sqrt{3} - \sqrt{7} .2 \sqrt{3} - 2 \sqrt{3} .2 \sqrt{3} } \\ = \ \frac{3 \sqrt{21} + 18 + 7 + 2 \sqrt{21} }{7 + 2 \sqrt{21} - 2 \sqrt{21} - 12} \\ = \frac{25 + 5 \sqrt{21} }{ - 5} \\ = - 5 - \sqrt{21}$

0 votes Thanks 1

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Soal matriks. tolong bantuannyaa pake cara yaa

Soal limit, tolong ini caranya gimana yaa kak?

Tolong bantuannyaa, ini jawabanya apa yaa, pake cara yaa

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