Respostas

2014-03-10T21:04:25-03:00
A)log5V5(1/5)=x(1/5)^x=5V55^-x=5*5^1/25^-x=5^3/2-x=3/2x=-3/2

B)logV27(1/9)=x(1/9)^x=V273^-2x=3-2x=1x=-1/2

C)log1024(1/2)=x2^-x=2^10-x=10x=-10

D)log0,6(5/3)=x(5/3)^x=6/10(5/3)^x=3/5Nao consegui prosseguir mais além

E)Nao consegui prosseguir

F)logx(5)=log1(1/2)logx(5)=05^0=xx=1

G)?

H)log64(0,25)=x(0,25)^x=64(25/100)^x=64(1/4)^x=2^62^-2x=2^6-2x=6x=-3