Pertanyaan

B e n t u k se d er hana d a r i 5 + 7 5 − 7 = .....

$B e n t u k se d er hana d a r i \frac{5 - 7}{5 + 7} = .....$

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Klaim

F. Pratama

Master Teacher

Mahasiswa/Alumni Universitas Putra Indonesia YPTK Padang

Jawaban terverifikasi

Pembahasan

$fraction numerator square root of 5 minus square root of 7 over denominator square root of 5 plus square root of 7 end fraction cross times fraction numerator begin display style square root of 5 minus square root of 7 end style over denominator begin display style square root of 5 minus square root of 7 end style end fraction equals fraction numerator 5 minus 2 square root of 35 plus 7 over denominator 5 minus 7 end fraction equals fraction numerator 12 minus 2 square root of 35 over denominator negative 2 end fraction equals fraction numerator negative 2 left parenthesis negative 6 plus square root of 35 right parenthesis over denominator negative 2 end fraction equals negative 6 plus square root of 35$