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Solve the equation cos3x=cos2x for

  1. Having trouble with this problem:Rewrite the expression as an equivalent expression that does not contain powers greater than 1.
    1. answers icon 2 answers
    2. Brian asked by Brian
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  2. Solve the equation cos3x=cos2x for 0¡Üx¡Ü360
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    2. Sarah asked by Sarah
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  3. Solve the equation of the interval (0, 2pi)cosx=sinx I squared both sides to get :cos²x=sin²x Then using tri indentites I came
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    2. Brian asked by Brian
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  4. Prove that cos3x/cosx-cos6x/cos2x=2(cos2x-cos4x)
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    2. Joel asked by Joel
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  5. Solve sin2x + sin4x = cos2x + cos 4x for x in the interval[0,2pi)Hint: the following substitution should come in handy: sin3x=
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    2. greg asked by greg
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  6. Solve the equation 2cos2x = √3 for 0°≤x≤360°I did this: cos2x = √3 /2 2x=30 x=15 x=15, 165, 195, 345 Is this correct?
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    2. Autumn asked by Autumn
    3. views icon 1,812 views
  7. Please help!!!!!!!!!!! Find all solutions to the equation in the interval [0,2π).8. cos2x=cosx 10. 2cos^2x+cosx=cos2x Solve
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    2. Anonymous asked by Anonymous
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  8. help please!:(sinx + sin2x +sin3x) / (cosx + cos2x + cos3x) = tan2x
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    2. Aiden asked by Aiden
    3. views icon 949 views
  9. Solve identity,(1-sin2x)/cos2x = cos2x/(1+sin2x) I tried starting from the right side, RS: =(cos²x-sin²x)/(1+2sinxcosx)
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    2. sh asked by sh
    3. views icon 770 views
  10. 1.) How would I simplify: sin4x*cos3x -cos3x*sin3x into a single trigonometric function?2.) determine the general solution to
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    2. Leash asked by Leash
    3. views icon 926 views