Power, logarithmic, and trigonometric functions have characteristic
values which you should memorize. In addition to these, you should
also remember the important constants:
|log 1 = 0|| log(10) = 1
||ln 1 = 0|| ln(e) = 1
Be sure you've looked through all of the values above before doing these. Of course, because we're just memorizing, these are just like flashcards: fill in each value, then click "check" to see if you're right.