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a-2-cos-2-x-dx-a-1-




Question Number 10669 by mrW1 last updated on 22/Feb/17
∫(√(a^2 −cos^2  x ))dx=?   (a≥1)
$$\int\sqrt{{a}^{\mathrm{2}} −\mathrm{cos}^{\mathrm{2}} \:{x}\:}{dx}=?\:\:\:\left({a}\geqslant\mathrm{1}\right) \\ $$

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