Odpowiedzi

2010-01-18T13:28:22+01:00
Log₄ a = 3

log₄16a² =
= log₄ (16 * a * a) =
= log₄ (4 * 4 * a * a) =
= log₄ 4 + log₄ 4 + log₄ a + log₄ a =
= 1 + 1 + 3 + 3 = 8