Your problem has a problem: -1≤sin A≤1! for all values of A!
Chlo A.
asked • 02/16/20trig help, sec confused
Find the EXACT value of cos(A+B) if sinA=−8/17 where A is in Quadrant III and secB=−5/4 where B is in Quadrant II. Assume all angles are measured from standard position. cos(A+B) =
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