What does expand each logarithm mean?
Category:
science
physics
Learn how to expand logarithms using product/quotient rule. And when given a logarithm expression involving the logarithm of a number raised to a certain exponent, the logarithm can be expanded by multiplying the exponent to the logarithm of the number without the exponent.
Moreover, what does it mean to expand a logarithm?
Since this radical is a square root that means the power is just ½. Just think of it as the power or exponent of ½. So this problem is reduced to expanding a log expression with a power of ½. This is where the Power Rule brings down that exponent ½ to the left of the log, and then you expand the rest as usual.
- STEP 1: Replace the function notation f (x) by y.
- f (x) → y.
- STEP 2: Switch the roles of x and y.
- STEP 3: Isolate the log expression on one side (left or right) of the equation.
- STEP 4: Convert or transform the log equation into its equivalent exponential equation.
Also to know, what are the log rules?
Logarithm rules
Rule name | Rule |
---|---|
Logarithm product rule | logb(x ∙ y) = logb(x) + logb(y) |
Logarithm quotient rule | logb(x / y) = logb(x) - logb(y) |
Logarithm power rule | logb(x y) = y ∙ logb(x) |
Logarithm base switch rule | logb(c) = 1 / logc(b) |
natural logarithm