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Find the exact sine value

  1. Find the exact value of cos(u+v) given that sine u=4/5 with u in quadrant II and sine v = -12/13 with v in quadrant IV.Not sure
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    2. Reston asked by Reston
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  2. Find the exact value of sin75degrees using sum identity of sine
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    2. Anonymous asked by Anonymous
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  3. find the exact value for cosine and sine of 2,1oo degree thanks
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    2. lisa asked by lisa
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  4. I'm having trouble understanding a sine concept.For instance, I know that the sine of 15 is .25881. Likewise, the sine of 165 is
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    2. Jim asked by Jim
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  5. Given cosine, theta, equals, start fraction, 2, divided by, 5, end fractioncosθ=5 2 ​ and angle thetaθ is in Quadrant IV,
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  6. Given cosine, theta, equals, start fraction, 2, divided by, 3, end fractioncosθ=3 2 ​ and angle thetaθ is in Quadrant I,
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  7. Given cosine, theta, equals, start fraction, 4, divided by, 7, end fractioncosθ=7 4 ​ and angle thetaθ is in Quadrant I,
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  8. find the sine of the acute angle between -6i + 3j + 2k and the x axis, leaving your answer in exact form
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    2. thankyou! asked by thankyou!
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  9. Find the exact sine value of the angle in standard position whose terminal side goes through the point (-1,5)I do not know when
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    2. Abbey asked by Abbey
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  10. Given the following unit circle, rotate green dot to the appropriate angle and then find the exact value of the function.sine,
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