logarytm oblicz: a) log3(243) b) log(1000) c)log2/3(81/16) d) log2(1/1024) e) log1/6(216)

a) log3(243) = log3 (3^5)=5 b) log(1000) = log (10^3)=3 c)log2/3(81/16) = log2/3 (2/3)^-4 = -4 d) log2(1/1024) = log2 (2^-10)=-10 e) log1/6(216) log1/3 (1/6)^-3 = -3