1
a)log(5)1/5=-1
b)log(2)16√2=log(2)(2^4,5)=4,5
2
(1/2)^(1-log(2)3)=(1/2):(2^-1)^log*2)3=1/2:2^log(2)1/3=1/2:1/3=3/2=1,5
3
0,001b^4/c^(2/7)=10^-3*b^4*c^(-9/7)
log(0,2)(10^-3*b^4*c^(-9/7))=-3log(0,2)10+4log(0,2)b-9/7*log(0,2)c
4
log(1/3)x=log(1/3)(√16*28/8)=log(3)(4*28/8)=log(3)14
x=14