Posted by **nathisikhona** on Thursday, May 23, 2013 at 12:57am.

if 5cosa + 3 = 0 and 180<a<360 , find the value of 3tana + 25sin^2a

## Answer this Question

## Related Questions

- math - how to define arc cosine(cosine x) for -360 deg<x< 360 deg?? a ...
- Please help Math - Determine the correct formula for the measures of all angles ...
- math - The measure of an interior angle of a regular polygon is 135 degrees. ...
- geometry - How would you complete the table? number of sides: 3, 4, 5, 6 measure...
- Algebra 2 - The formula A = 180(n-2)/n relates to the measure A of an interior ...
- Math - Given: csc = - 17/15 where 270 < 360 cot = -3/4 where 90 < 180 Find...
- Trig - I'm confused on how to determine what the end result angles are for a ...
- Maths - 1) Simplification (trigonometric ratios of allied angles)? Simplify : i...
- Trig (Last URGENT) - sin2x+cosx=0 , [-180,180) = 2sinxcosx+cosx=0 = cosx(2sinx+1...
- math - Find the exact value of cos 300 degrees. thanks guys cos 300 = 1/2 = 0....

More Related Questions