14(1+√3)(1-√3) : 3+√2 bantu kak :)
Matematika
dewimaesyaroh
Pertanyaan
14(1+√3)(1-√3) : 3+√2
bantu kak :)
bantu kak :)
1 Jawaban
-
1. Jawaban Anisazhf
14 (1 + 3^(1/2))(1 - 3^(1/2)) / 3 + 2^(1/2)
= 14 (1 + 3^(1/2) - 3^(1/2) - 3) / 3 + 2^(1/2)
= 14 (1 - 3) / 3 + 2^(1/2)
= 14 (-2) / 3 + 2^(1/2)
= -28 / 3 + 2^(1/2)
= -28(3 - 2^(1/2)) / (3 + 2^(1/2))(3 - 2^(1/2))
= -28(3 - 2^(1/2)) / 9 - 2
= -28(3 - 2^(1/2) / 7
= -4(3 - 2^(1/2))
= -12 - 4 × 2^1/2
= -12 - 4 akar 2