Wzór
log_aa^k=k
A.
log_3 9- log_2 16+ log100=log_33^2-log_22^4+log_{10}10^2=2-4+2=0
B.
log_2 0,25+ log_3 \frac{1}{81} -log0,001=
=log_2(\frac{1}{2})^2+log_3(\frac{1}{3})^4-log(\frac{1}{10})^3
=log_22^{-2}+log_33^{-4}-log_{10}10^{-3}
=-2-4-(-3)=-6+3=-3
C. D. Nie rozumiem zapisów: log2 ^3 , log2 ^5 , log 1/^5