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solve 2cos(2theta-pi)= -2 , -2

  1. Solve tan(40/90) for the double angle cos(2theta). I know I use the x^2 + y^2 = r^2 formula and cos(2theta) = cos^2theta -
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    2. Anna asked by Anna
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  2. solve 2cos(2theta-pi)= -2 , -2 pi less or equal to theta less than 2 pi
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    2. haile asked by haile
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  3. convert the polar equation r^2=2cos^2theta + 3sin^2theta into a rectangular equation
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    2. casey asked by casey
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  4. sin theta = 8/17 and theta is in the second quadrant. Find sin(2theta),cos(2theta),tan(2theta) exactlysin(2theta) cos(2theta)
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    2. Sally asked by Sally
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  5. 2cos^2theta-3costheta+1=0inerval [0,2Pi)
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    2. Adam asked by Adam
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  6. solve the equation of the domain 0¡Ü¦È¡Ü2¦Ð3cos^2theta - 5costheta -1 = 3sin^2theta
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    2. Amanda asked by Amanda
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  7. What values of theta between 0 and 2pi solve the following equation?sin squared (2theta)-sin(2theta)-2=0 NOTE: if you choose to
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    2. Natalie asked by Natalie
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  8. How do i solve for this identity.....cos2theta=2-sec^2theta/sec^2theta
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    2. Gregor asked by Gregor
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  9. What is the integral of 1-tan^2theta from 0 to pi/3?Using the identity tan^2theta=sec^2theta-1, I got my answer to be 2pi/3 -
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    2. Rachel asked by Rachel
    3. views icon 636 views
  10. establish identity5csc^2theta-3cot^2theta=2csc^2theta+3
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    2. Anonymous asked by Anonymous
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