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Math Help - My Biggest Trig Identity Challenge

  1. #1
    Junior Member casey_k's Avatar
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    My Biggest Trig Identity Challenge

    I'm never going to get this...
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  2. #2
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    \sin(\pi+x) + \cos\left(\frac{\pi}{2} - x\right) + \tan\left(\frac{\pi}{2} + x\right) =

    \left[\sin(\pi)\cos(x) + \cos(\pi)\sin(x)\right] + \left[\cos\left(\frac{\pi}{2}\right)\cos(x) + \sin\left(\frac{\pi}{2}\right)\sin(x)\right] + \frac{\sin\left(\frac{\pi}{2} + x\right)}{\cos\left(\frac{\pi}{2} + x\right)} =

    finish up by evaluating the first two expansions, then expand the sine and cosine sum in the last fractional term ... finally simplify.
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  3. #3
    Junior Member casey_k's Avatar
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    Re:

    Thank you so much! I didn't think it was possible!
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