SOLUTION: Find the exact value of the trigonometric function given that
sin u = −5/13 and cos v = −3/5. (Both u and v are in Quadrant III.)
sin(u + v)=
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Question 725200: Find the exact value of the trigonometric function given that
sin u = −5/13 and cos v = −3/5. (Both u and v are in Quadrant III.)
sin(u + v)=
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
But 
QIII 
, hence 
Solve for 
in similar fashion. Then use the sum formula for 
:
\ =\ \sin{\varphi}\cos{\psi}\ +\ \cos{\varphi}\sin{\psi})
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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