SOLUTION: Given that sin A = 5/13, cos B = -3/5, A is a quadrant I angle, and B is a quadrant II angle, find each of the following.
a) sin(A+B) b) cos(A+B) c) tan(A-B) d) the
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Question 1055093: Given that sin A = 5/13, cos B = -3/5, A is a quadrant I angle, and B is a quadrant II angle, find each of the following.
a) sin(A+B) b) cos(A+B) c) tan(A-B) d) the quadrant of A+B
Answer by ikleyn(52835) (Show Source): You can put this solution on YOUR website!
.
See the lesson
- Advanced problems on calculating trigonometric functions of angles, Problem 1
in this site.
Very similar problem was solved there. Consider it as a sample.
Read it attentively. Then solve your problem by substituting your data.
Also, you have this free of charge online textbook in ALGEBRA-II in this site
- ALGEBRA-II - YOUR ONLINE TEXTBOOK.
The referred lesson is the part of this online textbook under the topic
"Trigonometry: Solved problems".
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