Odpowiedzi

2010-03-11T20:16:39+01:00
A) log200 - log5 - log4 = log 200/5 - log4 = log40 - log4 = log 40/4 = log 10 = 1
b)log₆18+3log₆2+log₆4 = log₆(18 * 3 ) + log₆4 = log₆54 + 3 log₆4 = 3log₆(54 * 4) = 3log₆216= 3 * 3 = 9
c)logx0,25=-1
x = -2
d) log₅x=0
x = 1