Odpowiedzi

2010-03-24T17:25:44+01:00

a)
log a 0,25 = -1 --> a = 4 , bo 4⁻¹ = 1/4 = 0,25
b)
log a 64 = -3 ---> a = 1/4, bo (1/4)⁻³ = 4³ = 64
4 2 4