I am totally lost and have no idea how to do any of these :(

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- January 23rd 2010, 11:23 AMTarwaminTrigonometric Functions
I am totally lost and have no idea how to do any of these :(

- January 23rd 2010, 11:33 AMVonNemo19
- January 23rd 2010, 11:34 AMTarwamin
yes..but my teacher said it was all wrong

- January 23rd 2010, 11:37 AMVonNemo19
- January 23rd 2010, 11:43 AMTarwamin
i still have to do #1..i'll show u #2...

2sinx=sin^2+cos^2x

2sinx=1

sinx= 1/2

x= sin (inverse) (1/2)

x= 180/6

x=30

0<30<2(180) - January 23rd 2010, 11:56 AMVonNemo19
- January 23rd 2010, 12:17 PMTarwamin
oops..wrong post :$