Question

log in baza 2 din 4 minus log in baza 2 din 1 pe 2

Answer 1

$log^4_{2}-log^{ \frac{1}{2}}_{2}= log^{8}_{2}=log^{2^{3}}_{2}=3log^{2}_{2}=3$

Answer 2

log₂4 - log₂ (1/2)= log₂2² - log₂ 2^(-1) = 2log₂2 -(-1)log₂2 = 2·1+1·1 = 3