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# C2 Trig Question Watch

1. 1) Solve the following equation for t (theta), giving solutions in the interval 0 deg =< t =< 360 deg.
a) sin 2t - root 3 cos 2t = 0.

I don't know how to start this, because I can't see a use for any trig identity here Any ideas?
2. By the time I go and grab a piece of paper and pen, someone will already have answered you
3. Try to move the -root3 cos 2t to the other side, and divide both sides by cost2t

So you have tan2t=root3
4. Divide everything by cos2t ... should sort you out!
5. (Original post by cpdavis)
Try to move the -root3 cos 2t to the other side, and divide both sides by cost2t

So you have tan2t=root3
But then you lose solutions
6. (Original post by bcrazy)
Divide everything by cos2t ... should sort you out!
You then lose solutions =/
7. (Original post by Faith01)
By the time I go and grab a piece of paper and pen, someone will already have answered you
Haha almost
Haha almost
I agree with the 2 people who already commented above..you don't lose solutions.
9. you dont lose solutions as 0 is not a solution.
10. (Original post by Faith01)
I agree with the 2 people who already commented above..you don't lose solutions.
Ohhhh of course my bad! Thanks everyone
11. Another way to do this problem would be to write it in the form , but it seems like overkill for this question.

Ohhhh of course my bad! Thanks everyone
FWIW in case you want to know why you don't lose solutions: when you divide through by you're not cancelling a common factor, so it doesn't "disappear" as such, since it gets "caught" by the .
12. (Original post by nuodai)
Another way to do this problem would be to write it in the form , but it seems like overkill for this question.

FWIW in case you want to know why you don't lose solutions: when you divide through by you're not cancelling a common factor, so it doesn't "disappear" as such, since it gets "caught" by the .
Yeah it seems too complex for this question xD

And I get what you mean, thank you for the additional info nuodai

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