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Thread: How do I proove this

  1. June 8th 2010, 03:25 PM #1
    nightrider456
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    How do I proove this

    How do I proove this, any help would be appreciated
    <br /> \frac{Cosx+Cotx}{1+Sinx} = Cotx<br />
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  2. June 8th 2010, 05:47 PM #2
    skeeter
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    Quote Originally Posted by nightrider456 View Post
    How do I proove this, any help would be appreciated
    <br /> \frac{Cosx+Cotx}{1+Sinx} = Cotx<br />
    \frac{\sin{x}}{\sin{x}} \cdot \frac{\cos{x} + \cot{x}}{1+\sin{x}} =

    \frac{\sin{x}\cos{x} + \cos{x}}{\sin{x}(1+\sin{x})} =

    \frac{\cos{x}(\sin{x}+1)}{\sin{x}(1+\sin{x})} =

    \frac{\cos{x}}{\sin{x}} = \cot{x}<br />
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