Posted by **jeethu** on Tuesday, January 15, 2013 at 12:19am.

if sinx=3/5,cosy=12/13,where x and y both lie in 2nd quadrant, find the value of sin(x+y),cos(x-y),tan(x+y)?

## Answer this Question

## Related Questions

- math - If sinx=3/5,cosy=-12/13,where x and y both lie in 2nd quad.Find the value...
- trig - -Find sin(x+y), cos(x-y), tan(x+y) and the quadrant of x+y sinx=-3/5, ...
- maths --. - If sin theeta=3/5 , cos alpha= -12/13 and theeta,alpha both lie in ...
- Urgent - draw an angle x in the 1st quadrant with sinx=3/5, and an angle y in ...
- Trig - given that sinx=3/4 and cosy=-5/13 and both x and y are in quadrant II, ...
- Trig - Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < ...
- Math - Suppose f(x) = sin(pi*cosx) On any interval where the inverse function y...
- pre calc - Find the exact value of sin(x-y) if sinx=-3/5 in Quadrant III and ...
- Trigonometry - Prove the following trigonometric identities. please give a ...
- calc - what is the derivative of sinx- cosy = 0 in its simplest form? I got to ...