Jika ²log 3 = a dan ²log 5 = b, nyatakan bentuk berikut dalam a dan b! a) ²log 15 b) ⁴log 75 c) ²⁵log 36 d) ²log 5

a) ²log 15 = ²log 5 + ²log 3 = a + b
b) ⁴log 75 = ⁴log 25 + ⁴log 5
= ^2²log 5² + ^2²log 5
= (2/2).²log 5 + (½).²log 5
= b + ½b
= 3/2b
c) ^25log 36 = ²log 36 / ²log 25
= (²log 4 + ²log 9) / ²log 5²
= (²log 2² + ²log 3²) / (2).²log 5
= (2.²log 2 + 2.²log 3) / 2b
= (2(1) + 2a) / 2b
= (2 + 2a) / 2b
= 2(1 + a) / 2b
= (a+1)/b
d) ²log 5 = b