awake

i woke up realizing what i did wrong in two out of four problems in my exam yesterday. the first one, i don't really know what to do in the first part and when i thought i got all right already then i realize that what i did will yield the expected result that's why it is not acceptable. well, i don't really know how to do it.
 
then the second mistake is about geometry. it is clear what value i want to yield, but because i got the SOH-CAH-TOA rule jumbled in my mind i end up using the wrong equation. i will demand to my professor when the result comes out. i know what i'm doing and what i need to solve in the problem...
 
i'm still in search of a blog skin...*sigh* and basurero thanks for the help : )