Thursday

December 18, 2014

December 18, 2014

Posted by **Sammy** on Monday, June 25, 2012 at 8:09pm.

- Precalculus -
**Steve**, Tuesday, June 26, 2012 at 12:08amin QI, sinA=3/5 means cosA = 4/5

in QIII, cosB = -12/13 means sinB = -5/13

sin(A-B) = sinAcosB - cosAsinB = (3/5)(-12/13) - (4/5)(-5/13) = (-36+20)/65 = -16/65

**Answer this Question**

**Related Questions**

Math!!! - angle x is in the second quadrant and angel y is in the first quadrant...

Math Trig Find Quadrant I II III IV - In which quadrant is the terminal side of ...

trig - Suppose sin theda= – 3/5 and theda is a Quadrant III angle. Find the ...

pleeaasee hellpp!! - if sec x=the square root of 5/2 with angle x in quadrant IV...

Trig - Find cos(s+t) if cos s= -1/2 and sin t= 3/5, s and t are in quadrant II. ...

math - In which quadrant does the terminal side of the angle with measure -245 ...

Pre-calc help please!!! - 1) tan(sin^-1(5/6)-cos^-1(1/7) 2) tan(è + ); cos...

Math (please help!) - 1. θ is a first quadrant angle in standard position ...

Trig hep, please? Thank you! - 1. Find the exact value of sin(195(degrees)) 2. ...

pre calc - Find the exact value of sin(x-y) if sinx=-3/5 in Quadrant III and ...