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# A2 Statistics watch

1. by first writing [email protected] as sin([email protected] [email protected]), express [email protected] in terms of [email protected]
Hence solve the equation [email protected] [email protected] 0<[email protected]<=360 degrees

@ = thetre
2. (Original post by uzer)
by first writing [email protected] as sin([email protected] [email protected]), express [email protected] in terms of [email protected]
Hence solve the equation [email protected] [email protected] 0<[email protected]<=360 degrees

@ = thetre
*theta. It might be beneficial to learn some basic LaTex, there's a guide here:
http://www.thestudentroom.co.uk/wiki/LaTeX
How many of these are you actually getting out? Did you get the last one out?

Use the sine double angle formula for , , then use the double angle formulae again.
3. yes dont worry i have done all the sums so far

i have tried double angle foormula no luck
4. (Original post by uzer)
yes dont worry i have done all the sums so far

i have tried double angle foormula no luck
I was getting a little worried. If you're getting them out that's fine.

Then you expand and use .

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Updated: January 25, 2015
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