jika log 2 = 0,3010 dan log 3 = 0,4771 tentukan log 20

Logarithm.

㏒ (ab) = ㏒ a + ㏒ b
㏒ 20 = ㏒ (10 × 2)
         = ㏒ 10 + ㏒ 2
         = 1 + 0,3010 = 1,3010