How ( Nancy Pi)

MIT grad introduces logs and shows how to evaluate them. To skip ahead: 1) For how to understand and evaluate BASIC LOGS, skip to time 0:52. 2) For how to evaluate weirder logs, including the log of 0, 1, a FRACTION, or a NEGATIVE number, skip to time 6:44. 3) For NATURAL LOGS (LN X), skip to time 11:17. 4) For even weirder logs, including SOLVING for X and using the CHANGEOFBASE formula, skip to time 14:56. Nancy formerly of MathBFF explains the steps. Follow Nancy on Instagram: Twitter: 1) BASIC LOGS: you can read log notation as log, base 3, of 9 equals X. The small (subscript) number is called the base. You can always evaluate a log expression by rearranging it into something called exponential form. Every log expression is connected to an exponential expression. In this example, the log is connected to the exponential form 3 to the X power equals 9. This means, 3 raised to what power gives you 9 qu