tlg ya kakkkkkkkkkkkk

2. 5√27 - 4√48 + √75 - 3√12
= 5√9x3 - 4√16x3 +√25x3 - 3√4x3
= 5.3√3 - 4.4√3 + 5√3 - 3.2√3
= 15√3 - 16√3 + 5√3 - 6√3
= -2√3 (D)

3. Dik : log 3 = 0,477
log 5 = 0,699
log 450 = log 10 + log 5 + log 3 + log 3
= 1 + 0,699 + 0,477 + 0,477
= 2,653 (C) Ingat sifat2 logaritma alog a = 1 alog bc = alog b + alog c