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1. Find all values of theta in interval -180 less then equal to theta less then equal to 180 to 1dp

4sin theta=5cos theta I know the cos grpah is a translation of the sine graph but im not too sure what to do
2. you need to use...

tan(x) = sin(x) / cos(x)
3. (Original post by didgeridoo12uk)
you need to use...

tan(x) = sin(x) / cos(x)
I tried this but it didnt seem to help
4. (Original post by hazbaz)
I tried this but it didnt seem to help
you'll end up with

tan(x) = constant

from that you can work out all the values of x in the range given that satisfy the question

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Updated: December 14, 2010
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