SOLUTION: If cosA=12/13 and sineB=-1/2 with A and B in the fourth quadrant find cos(A-B) and tan(A+B)

SOLUTION: If cosA=12/13 and sineB=-1/2 with A and B in the fourth quadrant find cos(A-B) and tan(A+B)

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Question 1041484: If cosA=12/13 and sineB=-1/2 with A and B in the fourth quadrant find cos(A-B) and tan(A+B)
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

Since it's Q4, ,

and
similarly,

Since it's Q4, ,

So then,

and

.
.
.
Fill in with the calculated values to complete the problem.

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