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where is f(x)=12cos(3x) equal to

  1. where is f(x)=12cos(3x) equal to zero. so far i have pi/2+n2pi.. i am not sure about pi/2
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    2. amy asked by amy
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  2. How does √(-3cos(t)/2)^2 +(3sin(t)/2)^2 (3cos(t)/2 - 9/2)^2 equal 3/4√4sin^2(t)-12cos(t)+17 instead of √cos^2(t)
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    2. Anonymous asked by Anonymous
    3. views icon 450 views
  3. if 5sin theta + 12cos theta is equal to 13 find the value of tan theta
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    2. salina asked by salina
    3. views icon 632 views
  4. if 5sin theta + 12cos theta is equal to 13 find the value of tan theta
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    2. Anonymous asked by Anonymous
    3. views icon 4,808 views
  5. 5sin + 12cos = 13 , find the value of tan
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    2. trigonometry asked by trigonometry
    3. views icon 696 views
  6. 4+29sin=12cos^2How do you determine this
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    2. Blair asked by Blair
    3. views icon 497 views
  7. solve 12cos^2X=8+13sinX between the window of -360 ¡Ü x ¡Ü 360
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    2. kelly asked by kelly
    3. views icon 592 views
  8. Prove the identity.6cos^2(x)-1 -12cos^4(x) +8cos^6(x)= cos^3(2x) Thanks for your help :)
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    2. Tommy asked by Tommy
    3. views icon 660 views
  9. Find the derivative of y with respect to x:y=3sin^4(2-x)^-1 y=[3sin(2-x)^-1]^4 y'=4[3sin(2-x)^-1]^3 (-3cos(2-x)^-1)(-1)
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    2. sh asked by sh
    3. views icon 652 views
  10. Y is partially constant and partially varies as x , when x is equal to 1 ,y equal to 7 when x equal to minus ,y is equal to 11
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    2. Ogalonye Dorathy Nkechi asked by Ogalonye Dorathy Nkechi
    3. views icon 278 views