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Solve: cos2x(2cosx+1) for 0degrees is

  1. Solve: cos2x(2cosx+1) for 0degrees is less than or equal to x is equal to or less than 360degrees
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    2. Tabitha asked by Tabitha
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  2. cos2x(2cosx+1)=0Solve for x.
    1. answers icon 3 answers
    2. Ted asked by Ted
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  3. 1)solve for x4sin(x+30)=3for 0<x<3602)solve for 0in the equation sin(2-100)=0.5for 0degrees<0<360degrees 3)solve the
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    2. betsy asked by betsy
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  4. 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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  5. 2cosx + sqr3 = x [0degrees,360degrees)
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    2. Jane asked by Jane
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  6. cos2x(2cosx+1)=0x=?
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    2. Rob asked by Rob
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  7. Prove that 2cosx/cos2x+1=secx
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  8. For the following equation, why cannot I not solve it? I keep getting an error.-- 2cosx - 3 = 0 -- I first isolated for "x"
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    2. Anonymous asked by Anonymous
    3. views icon 1,219 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 748 views
  10. use power reducing identities to prove the identitysin^4x=1/8(3-4cos2x+cos4x) cos^3x=(1/2cosx) (1+cos2x) thanks :)
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    2. skye asked by skye
    3. views icon 2,145 views