a) Log6 18 + 3 log6 2 – log6 4 = (te 6 to podstawy) b)log5 6 - 3(log5 2 + log5 3) / (to wszystko podzielić na... ) log5 6= c)2log3 4 - 3 log3 12 / (to wszystko podzielić na... ) 3 + log3 4 =

a) log6 18+ log6 2³ - log6 4= log6(18*8)-log6 4= log6(144) - log6 4 log6(144/4)=log6 36 log6 36=x 6^x=36 x=2 b)[log5 6 -3(log5 6)] / log5 6= log5 6 - log5 216= [log5 (1/36)] / log5 6= log6 36 log6 (1/36) = x 6^x= 1/36 6^x=6^-2 x= -2 c)[log3 16 - log3 1728] / [log3 27 +log3 4] = log3 (1/108) / log3 108 = log108 (1/108) log108 (1/108) = x 108^x = 1/108 108^x=108^-1 x=-1