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Math Help - Tangent equations

  1. #1
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    Tangent equations

    I wasn't sure how to attack this one at all. It's not the first tangent type problem I've had trouble with, so I decided to ask for help.
    Attached Thumbnails Attached Thumbnails Tangent equations-mathhelptan.jpg  
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  2. #2
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    The key to this question is to recognize the period and know what the normal period is for the tangent function. Normally, the tangent function has a period of \pi. In this question, the function has a period of \pi/2. In order to cut the period in half, what coefficient for x should be used?
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  3. #3
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    Oh that makes perfect sense. B would be the answer. And the book confirms this. For the period to be pi/2, a would be 2, as period in a tan function is given by pi over the x coefficient.
    Thanks again icemanfan!
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