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Given that cos 13pi/18=sin y,

  1. Find the linear approximation L(x)of the function f(x)=cos(pi/(6)x) at the point x=1 and use it to estimate the value of
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    2. Amy asked by Amy
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  2. find exact value cos(13pi/15)cos(-pi/5)-sin(13pi/15)sin(-pi/5)
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    2. chris asked by chris
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  3. Given that cos 13pi/18=sin y, first express 13pi/18 as a sum of pi/2 and an angle, and then apply a trigonometric identitiy to
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    2. uwu asked by uwu
    3. views icon 859 views
  4. Given that cos 13pi/18=sin y, first express 13pi/18 as a sum of pi/2 and an angle, and then apply a trigonometric identitiy to
    1. answers icon 1 answer
    2. Vincent asked by Vincent
    3. views icon 1,822 views
  5. How can I solve this questions and get those answers????answers sec 13pi/4=? =>-�ã(2) csc 13pi/4=? =>-�ã(2) sec (-pi/6)=?
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    2. MELEK asked by MELEK
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  6. Please help!Find the point where the curve r(t) = (12sint)i -(12cost)j +5k is at a distance 13pi units along the curve from the
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    2. Chris asked by Chris
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  7. what is the exact value of tan- 13pi/6
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    2. Anonymous asked by Anonymous
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  8. Prove that sin 13pi/3.sin 8pi/3+cos 2pi/3.sin 5pi /6=1/2.
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    2. Latasha. asked by Latasha.
    3. views icon 3,736 views
  9. sin 20 picos 9 pi cos 13pi/2 sin(-17 pi0 are all of these undefined?
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    2. jim asked by jim
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  10. Given f(x) = sin x, evaluate the function at x = 13pi/2
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    2. views icon 32 views