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Math Help - without using L'Hospital's Rule

  1. #1
    Member Miss's Avatar
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    without using L'Hospital's Rule

    evaluate

    \displaystyle \lim_{x\to \frac{-\pi}{4}} \dfrac{1+sin(2x)}{sin(x)+cos(x)}
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  2. #2
    Super Member General's Avatar
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    (1+sin(2x))=(sin(x)+cos(x))^2
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