Question

Log196 1/14 = помогите очень надо

Answer 1

logb^k (a)=1/k *logb (a)
logb (a^k)=k* logb (a)
log196 (1/14)=log14^2 (14^(-1))=1/2 *log14 (14^(-1))= 1/2 *(-1)*log14 (14)=1/2 *(-1)*1 = -(1/2)