Calculus Archive: Questions from February 03, 2023
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Find \( \operatorname{div} \mathbf{F} \) and curl \( \mathbf{F} \) if \( \mathbf{F}(x, y, z)=x z^{8} \mathbf{i}+4 y^{8} x^{2} \mathbf{j}+4 z^{2} y \mathbf{k} \) \[ \operatorname{div} \mathbf{F}=1 \qua2 answers -
ind \( \nabla \times(\nabla \times \mathbf{F}) \) if \( \mathbf{F}(x, y, z)=2 x y \mathbf{j}+5 x y z \mathbf{k} \) \[ \nabla \times(\nabla \times \mathbf{F})= \]2 answers -
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Defina en sus propias palabras una superficie parametrizada y ofrezca un ejemplo. (Puede ser un ejercicio del libro de texto "Calculus" 9na. Ed.)2 answers -
answer ALL please (8-12)
8. Find \( \frac{d y}{d x} \) for \( y=x^{2} \cot x-\frac{1}{x^{2}} \) \( (5 \mathrm{pts}) \) 9. Find \( \frac{d y}{d x} \) for \( y=(\sin x+\cos x) \sec x \) \( (8 \mathrm{pts}) \) 10. Find \( y^{\pr2 answers -
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Rewrite the integral using the order dxdzdy. Then comment on whether or not it is convenient to change the coordinates to cylindrical or spherical and work on your evaluation.
III. Reescriba el integral utilizando el orden dxdzdy. Luego comente si es o no es conveniente hacer cambio de coordenadas a cilíndricas o esféricas y trabaje su evalaución. \[ \int_{0}^{4} \int_{02 answers -
Find the partial derivatives of the function \[ f(x, y)=x y e^{-1 y} \] \[ \begin{array}{l} f_{x}(x, y)= \\ f_{y}(x, y)= \\ f_{x y}(x, y)= \\ f_{y x}(x, y)= \end{array} \]2 answers -
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If \( g(1)=4 \) and \( g_{\prime}(1)=3 \), find \( f(1) \) and \( f^{\prime}(1) \), where \( f(x)=5 \cdot \sqrt{g(x)} \)2 answers -
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Using the following dataset \[ y_{1}=3, y_{2}=5, y_{3}=7, y_{4}=10, y_{5}=2, y_{6}=4, y_{7}=6, y_{8}=1, y_{9}=8 \] Please find: \[ \sum_{i=1}^{3} y_{i}+2 \]2 answers -
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finde the genral solution : i need both please amd thank you
general solution. \[ \begin{array}{l} y^{\prime}=\sqrt{x+y+1} \\ (2 x \sin y \cos y) y^{\prime}=4 x^{2}+\sin ^{2} y \end{array} \]2 answers -
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