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Math Help - solve in R

  1. #1
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    solve in R

     <br /> <br />
\begin{array}{l}<br />
 solve\;in\,R \\ <br />
  \\ <br />
 \frac{1}{{\sin ^2 x}} = \cot x + 3 \\ <br />
 \end{array}<br /> <br /> <br />
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  2. #2
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    What steps have you taken so far?
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  3. #3
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    Quote Originally Posted by Ackbeet View Post
    What steps have you taken so far?
    what do you mean?

    tanx=1 (complete)
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  4. #4
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    That's a rather mystifying post. The equation you give there, tan(x) = 1, does not, by any means, have the same solutions as the equation in the original post. I'm asking what steps have you taken so far in solving your problem?
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  5. #5
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    Quote Originally Posted by fxs12 View Post
     <br /> <br />
\begin{array}{l}<br />
 solve\;in\,R \\ <br />
  \\ <br />
 \frac{1}{{\sin ^2 x}} = \cot x + 3 \\ <br />
 \end{array}<br /> <br /> <br />
    couple of identities will help ...

    \csc^2{x} = \cot{x} + 3

    1 + \cot^2{x} = \cot{x} + 3

    \cot^2{x} - \cot{x} - 2 = 0

    solve the quadratic for \cot{x} ... then for the value(s) of x
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