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Romero

  • 3 years ago

int_{0}^{2\pi} cos^2(x) dx

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  1. Romero
    • 3 years ago
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    \[\int\limits_{0}^{2\pi} \cos^2(x) dx \]

  2. nbouscal
    • 3 years ago
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    Use the identity \(\cos^2x=\dfrac{1+\cos2x}{2}\)

  3. Romero
    • 3 years ago
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    got it thanks.

  4. Romero
    • 3 years ago
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    Got pi

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