love me for who i am

trying my best to forget you.

chain rule: keep constant, bring down power, copy back, reduce power by one, differentiate inside

product rule: keep the second one differentiate the first one, plus, keep the first one differentiate the second one

quotient rule: keep the bottom differentiate the top, minus, keep the top differentiate the bottom, whole thing divide by the bottom square

spent half the day with ziteng figuring out just what the difference between a chromosome and chromatid is. like does a normal cell have chromosomes or chromatids? then studied geography also.

world trade has two main concepts:
1. countries form unions to remove tariffs. so they reduce the price of goods they trade, and this increases customers.
2. countries in unions set up trade barriers to protect union goods against cheaper goods from LDCs, LDCs in turn find it harder and harder to sell their products into the world market.

heavy rain today. and there's no rainbow.