3-√2 / 3+√2 = ..... mohon bantuannya kakak abg
Matematika
harry102
Pertanyaan
3-√2 / 3+√2 = ..... mohon bantuannya kakak abg
1 Jawaban
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1. Jawaban Anonyme
Kelas 9 Matematika
Bab Akar dan Pangkat
(3 - √2)/(3 + √2)
= (3 - √2)/(3 + √2) . (3 - √2)/(3 - √2)
= (3² - 2 . 3 . √2 + √2²)/(3² - √2²)
= (9 - 6√2 + 2)/(9 - 2)
= (11 - 6√2)/7