Logarithms Flashcards
1
Q
Log-a(x) = y
Identify a, x and y
A
A = base
X = a^y
Y = power
2
Q
Limitations of logs
(Logs can only be used if)
A
a > 0
a != 1
x >= 0
3
Q
What is
Log-a(a)
xlog-a(a)
kLog-a(x)
A
Log-a(a) = 1
xLog-a(a) = x
kLog-a(x) = Log-a(x)^k
- any coefficient of the log can become the power of x
4
Q
Logarithmic operational rules
A
Log-a(x) + Log-a(y) = Log-a(x*y)
Log-a(x) - Log-a(y) = Log-a(x/y)
