Can someone help me solve this:

tan(a-b)

cosa = -4/5 Lies in Quadrant 3

sinb = 1/3 Lies in Quadrant 1

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Can someone help me solve this:

tan(a-b)

cosa = -4/5 Lies in Quadrant 3

sinb = 1/3 Lies in Quadrant 1

tan(a-b)

cosa = -4/5 Lies in Quadrant 3

sinb = 1/3 Lies in Quadrant 1

- gmorrow2
**Posts:**1**Joined:**Fri Mar 26, 2010 11:35 pm

just plug into the angle diff formula for tan: http://oakroadsystems.com/twt/sumdiff.htm#TanSum

- mathnoob
**Posts:**8**Joined:**Tue Jul 28, 2009 12:39 pm

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