Question

помогите решить 5 задание
очень надо экзамен

Answer 1

log(5)50=2+log(5)2
log(2)5=1/log(5)2
log(5)10=1+log(5)2
log(10)5=1/1+log(5)2

5,5(log(5)50/log(2)5  -  log(5)10/log(10)5 )=
=5,5(log(5)2*(2+log(5)2 )-(1+log(5)2 )*(1+log(5)2 )=
=5,5(2log(5)2+(log(5)2)²-1-2log(5)2 +(log(5)2)²)=5,58(-1)=-5,5