Wednesday, March 10, 2010
The Word.
HELLO WORLD
review tests are almost over! after tomorrow, i will be FREEEEEEEE!
heres my opinion of the tests difficulty so far (one star easy, five star really hard)
Biology: **
Language arts: **
Chinese:
Chemistry: ***
Physics: ****
and maths will be tomorrow!
oh by the way zero stars means its SUPER EASY
well, if we all still need encouragement for the RTs, take a look at the third line of the second most recent post here
http://www.09v14.blogspot.com/. yes, that is our class blog, in case you have forgotten... oh yea, that post was from last year by the way...
ok time to memorise stuff:
sin^x + cos^2x = 1
sec^2x = tan^2x +1
cosec^2 = cot^2 +1
sin(A+B) = sinAcosA+sinBcosA
cos(A+B) = cosAcosB-sinAsinB
tan(A+B) = (tanA+tanB)/(1-tanAtanB)
sin2A = 2sinAcosA
cos2A = cos^2A-sin^2A
cos2A = 2cos^2A-1
cos2A = 1-2sin^2A
tan2A = (2tanA)/(1-tan^2A)
sinP+sinQ = 2sin[(P+Q)/2]cos[(P-Q)/2]
sinP-sinQ= 2cos[(P+Q)/2]sin[(P-Q)/2]
cosP+cosQ = 2cos[(P+Q)/2]cos[(P-Q)/2]
cosP-cosQ = -2sin[(P+Q)/2]sin[(P-Q)/2]
i think thats all
i think its correct, i memorised all that rubbish...
ok im going to sleep now, need energy for tmr :)
BYE
Caleb praised GOD @10:18 PM
Have you met CALEB?