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  1. arctan 1 + arctan 2 + arctan 3 = π une preuve géométrique

    arctan 1 + arctan 2 + arctan 3 = π une preuve géométrique

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  2. Calculus Help: Integral of ∫ arctan⁡(3x)dx - Integration by parts and how to solve

    Calculus Help: Integral of ∫ arctan⁡(3x)dx - Integration by parts and how to solve

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  3. Prove inverse trigonometry - sin^(-1)⁡ x =tan^(-1)⁡ ( x/√(1-x^2 ) or arcsinx = arctan(x/√(1-x^2)

    Prove inverse trigonometry - sin^(-1)⁡ x =tan^(-1)⁡ ( x/√(1-x^2 ) or arcsinx = arctan(x/√(1-x^2)

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  4. Toán Cao Cấp: Đạo hàm riêng z=(x^3+y^3)/(x^2+y^2 ), z=y^2 sin⁡(x/y), z=x^(y^3 )

    Toán Cao Cấp: Đạo hàm riêng z=(x^3+y^3)/(x^2+y^2 ), z=y^2 sin⁡(x/y), z=x^(y^3 )

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  5. Formule de cos(arctan(x))

    Formule de cos(arctan(x))

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  6. Formule de sin(arctan(x))

    Formule de sin(arctan(x))

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