Logarithms Flashcards
0
Q
If a^x=y
A
Log(a)y=x
1
Q
Using index laws to solve simple exponential equations
2^x=8
A
When solving exponential equations we must make the bases the same
2^x=2^3
x=3
2
Q
Logxy=
assuming the base is the same at a
A
= logx + logy
3
Q
Log x/y=
assuming the base is the same at a
A
Logx- Logy
4
Q
N-rule
Logx^n=
(Assuming the base is a)
A
N Logx
5
Q
Using log to solve exponential equations
A
Log10 both sides and use the n rule
6
Q
Change of base
Log(a)x=
A
Log(b)x/Log(b)a
