Posted by **rick** on Tuesday, February 26, 2008 at 1:25pm.

If sin = -3/5 with A in QIV, find cos A/2

- trig -
**drwls**, Tuesday, February 26, 2008 at 5:55pm
If QIV means fourth q

## Answer this Question

## Related Questions

- TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...
- trig - If sin = 4/5 with A in QII, and sin B = -3/5 with B in QIV find cos(A-B)
- trig - Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...
- Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...
- Trig - Find sin(s+t) and (s-t) if cos(s)= 1/5 and sin(t) = 3/5 and s and t are ...
- trig - If sin A= 1/4 and sin B= -1/2, with A in QII and B in QIV, find tan(A+B)
- trig - If cos A =1/3 with A in QIV find cscA/2
- trig 26 - simplify to a constant or trig func. 1. sec Ču-tan Ču/cos Čv+sin Čv ...
- Trig - Given that cos θ = 5/13 and θ is in QIV, find the exact value ...
- trig - The expression 4 sin x cos x is equivalent to which of the following? (...

More Related Questions