Hello Guys i have a logarithme lesson, and our teacher gave us some exercices but he didn't explain all the lesson.
compare without a calculater:
Ln7 and ln2 + ln 3
For me: 7>3+5 --> Ln7>ln5
3+ln (radical)e and 4 ? well i don't know how to compare it.
lnx =1 ; ln 2x=0 ; lnx=-1 ; lnx=3 ( what i have to do here)??
ln(x^2-2x-3) = ln(x+7)
the teacher told us to do them and he gave us this
ln(ab) = ln (a) +ln(b) but i can't do them....
Please help me i have many exercices like these and when somebody could help me i guess i can solve the others ones
Many thanks in advance