## Can you expand a logarithmic expression on a calculator?

The calculator can make logarithmic expansions of expression of the form ln(a*b) by giving the results in exact form : thus to expand ln(3⋅x), enter expand_log(ln(3⋅x)), after calculation, the result is returned.

## What happens when you add two logs?

This law tells us how to add two logarithms together. Adding log A and log B results in the logarithm of the product of A and B, that is log AB. The same base, in this case 10, is used throughout the calculation. The same base, in this case e, is used throughout the calculation.

How do you expand and simplify logarithmic functions?

To expand logarithms, write them as a sum or difference of logarithms where the power rule is applied if necessary. Often, using the rules in the order quotient rule, product rule, and then power rule will be helpful. To simplify logarithms, write them as a single logarithm.

### How do you evaluate logarithms?

To evaluate a logarithmic function, determine what exponent the base must be taken to in order to yield the number x. Sometimes the exponent will not be a whole number. If this is the case, consult a logarithm table or use a calculator. Examples: y = log39. Then y = 2. y = log5. Then y = – 4. y = log.

### How do I solve log x?

Solve for X Using the Logarithmic Quotient Rule Know the quotient rule. Isolate the logarithm to one side of the equation. Apply the quotient rule. Rewrite the equation in exponential form. Solve for x. Write your final answer.

How do you calculate log base?

Anti-logarithm calculator. In order to calculate log -1(y) on the calculator, enter the base b (10 is the default value, enter e for e constant), enter the logarithm value y and press the = or calculate button: When. y = log b x. The anti logarithm (or inverse logarithm) is calculated by raising the base b to the logarithm y:

## Why do we use logarithms?

The reason why we use logarithms in mathematical equations is to simplify the calculations involved in them. So more or less, log is just another tool used by people all over the world as a means to simplify calculations.