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anonymous
 5 years ago
Given sin x =1/2 with x in quadrant 3 and tan y =4/3 with y in quadrant 1, find the exact value of sin(xy).
anonymous
 5 years ago
Given sin x =1/2 with x in quadrant 3 and tan y =4/3 with y in quadrant 1, find the exact value of sin(xy).

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thats all the question gives me

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I'm stumped. I don't know if x and y are sides of triangle or angles

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[actually x=\alpha and y=\beta\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0can't figure out what you just wrote

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[x=\alpha \] and \[y=\beta\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0OK, choice of variables made the question confusing. I got it now. Got to go to class will attempt later.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Recall sin (A  B) = Sin A cos B  cos A sin B Use sin A= 1/2 in 3rd quadrant to find cos A Use tan B =4/3 in 1st to find sin of B, cos B Use exact values (no calculator, keep square roots etc) to find above
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