Given that sin A= 3/5 and cosB= 12/13 where A is obtuse and B is acute, find the exact values of cos(A+B) and cot(A-B) I am really having trouble understanding this question, i dont even know how to start..? Id appreciate the help. Thanks
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If A is obtuse then . If B is acute then . Then use the identities and
How do we find the values of Sin B and Cos A?
Hello Oasis1993 Originally Posted by Oasis1993 How do we find the values of Sin B and Cos A? Have you really looked at red_dog's reply? Grandad
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