I took a test this Monday on Derivatives, and ran into a problem. I didn't have enough time to finish the test. We got the test back today, and I got all of my answer right, except I didn't get to the rest of the test, and ended up getting a 36%. Supposedly a few others are having the same problem, and he is letting the class re-take the test (different form though), except he is giving us 2 hours instead of 1 and a half. Now, I know how to find derivatives and have done plenty of homework. My problem is taking forever to complete them. Would anyone happen to have any tips or tricks at finding the derivative of a problem quickly? Even with the different rules for making the derivative easier to find, it still takes a while.