Question

Tolong kerjakan ini!! Nomor 4 dan 5

Answer 1

Bab Bilangan Irrasional dan Logaritma
Matematika SMA Kelas X

4] (3√2 + √3) / (5√6 - 2)
= (3√2 + √3) (5√6 + 2) / ((5√6)² - 2²)
= (15√12 + 6√2 + 5√18 + 2√3) / (150 - 4)
= (15 . 2√3 + 6√2 + 5 . 3√2 + 2√3) / 146
= (30 √3 + 6√2 + 15√2 + 2√3) / 146
= (32√3 + 21√2) / 146

5] log 90 - 1/(¹⁸log 10) + 1/(⁵⁰log 10)
= log 90 - log 18 + log 50
= log 122
= 2,086