Calculus Archive: Questions from April 28, 2023
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Given \( f(x, y)=x^{4}+3 x^{2} y^{3}-5 y^{2} \) \[ f_{x}(x, y)= \] \[ f_{y}(x, y)= \] \[ f_{x x}(x, y)= \] \[ f_{x y}(x, y)= \]2 answers -
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Given \( f(x, y)=4 x^{3}+2 x^{2} y^{5}+5 y^{4} \), find \[ \begin{array}{l} f_{x}(x, y)=12 x^{2}+4 x y^{5} \\ f_{y}(x, y)=10 x^{2} y^{4}+20 y^{3} \\ f_{x x}(x, y)= \\ f_{x y}(x, y)= \end{array} \]2 answers -
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Given \( f(x, y)=2 x^{2}-4 x^{2} y^{3}-5 y^{6} \) \[ f_{x}(x, y)= \] \[ f_{y}(x, y)= \] \[ f_{x x}(x, y)= \] \[ f_{x y}(x, y)= \]2 answers -
Given \( f(x, y, z)=\sqrt{-x-6 y+z} \), \[ f_{x}(x, y, z)= \] \[ f_{y}(x, y, z)= \] \[ f_{z}(x, y, z)= \]2 answers -
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Que sea corto, i will rate
Situación: Presente un ejercicio de integración que requiera la descomposición en fracciones parciales y otro ejercicio de integración parecido en el que no requiere de tal técnica. Explique sus1 answer -
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a) Observa la figura propuesta como porción de una de las torres. Es un volumen situado en el primer octante acotado por los planos de referencia, y el plano \( \quad z=3-x-y \quad \) y el cilindrc \0 answers -
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Given \( f(x, y)=-1 x^{6}+4 x^{2} y^{5}-5 y^{4} \), find \[ f_{x}(x, y)= \] \[ f_{y}(x, y)= \] \[ f_{x x}(x, y)= \] \[ f_{x y}(x, y)= \]2 answers -
Given \( f(x, y, z)=\sqrt{-5 x+4 y-6 z} \) \[ f_{x}(x, y, z)= \] \[ f_{y}(x, y, z)= \] \[ f_{z}(x, y, z)= \] Question Help:2 answers -
Given \( f(x, y)=-2 x^{6}+5 x^{2} y^{3}+y^{5} \) \[ f_{x}(x, y)= \] \[ f_{y}(x, y)= \] \[ f_{x x}(x, y)= \] \[ f_{x y}(x, y)= \]2 answers -
1. Solve the IVP: \( y^{\prime \prime}-4 y=4 t-8 e^{-2 t} \quad y(0)=0, y^{\prime}(0)=5 \) 2. Solve the IVP: \( y^{\prime \prime}-y^{\prime}-2 y=-8 \cos t-2 \sin t, \quad y(\pi / 2)=1, y^{\prime}(\pi2 answers -
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Given \( f(x, y)=-3 x^{2}+6 x y^{5}+5 y^{3} \), following numerical values: \[ f_{x}(2,2)= \] \[ f_{y}(2,2)= \]2 answers -
Given \( f(x, y)=-3 x^{6}+3 x^{2} y^{3}-6 y^{4} \), \[ f_{x}(x, y)= \] \[ f_{y}(x, y)= \] \[ f_{x x}(x, y)= \] \[ f_{x y}(x, y)= \]2 answers -
Given \( f(x, y, z)=\sqrt{-2 x+6 y-5 z} \), \[ f_{x}(x, y, z)= \] \[ f_{y}(x, y, z)= \] \[ f_{z}(x, y, z)= \]2 answers -
Evaluate \( \iiint_{\mathcal{W}} f(x, y, z) d V \) for the function \( f \) and region \( \mathcal{W} \) specified: \[ f(x, y, z)=30(x+y) \quad \mathcal{W}: y \leq z \leq x, 0 \leq y \leq x, 0 \leq x2 answers -
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Halle el valor de \( C \) si \( f^{\prime}(x)=\frac{2}{x^{2}} \) y \( f(4)=5 \) Select one: a. \( 9 / 2 \) b. \( 9 / 4 \) c. \( 11 / 4 \) d. \( 11 / 2 \)2 answers -
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\( \begin{array}{l}f(x, y)=6 x^{5} y^{2} \\ f_{x}(x, y)=30 x^{4} y^{2} \\ f_{x}(-4, y)=-7680 y^{2} \\ f_{x}(x,-3)=6 x^{5} 9 \\ f_{x}(-4,-3)= \\ f_{y}(x, y)= \\ f_{y}(-4, y)= \\ f_{y}(x,-3)= \\ f_{y}(-2 answers -
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Question 1 Define a) Compute \( (\nabla g)(0,0) \cdot \mathbf{v} \) where \( \mathbf{v}=\frac{1}{\sqrt{2}} \mathbf{i}+\frac{1}{\sqrt{2}} \mathbf{j} \).2 answers -
Question 1 Define b) Compute \( \left(D_{\mathrm{v}} g\right)_{(0,0)} \) where \( \mathbf{v}=\frac{1}{\sqrt{2}} \mathbf{i}+\frac{1}{\sqrt{2}} \mathbf{j} \)2 answers -
Question 1 Define \[ g(x, y)=\left\{\begin{array}{lll} \frac{\sin \left(x y^{2}\right)}{x^{2}+y^{2}} & \text { if } & (x, y) \neq(0,0) \\ 0 & \text { if } & (x, y)=(0,0) \end{array}\right. \] c) Is \(2 answers -
Evaluate the indefinite integral. \[ \int \frac{\cos (\sqrt{x})}{\sqrt{x}} d x \] A) \( \frac{1}{2} \sin (\sqrt{x})+C \) B) \( -\frac{1}{2} \sin (\sqrt{x})+C \) c) \( \sin (\sqrt{x})+C \) D) \( -\sin2 answers -
Demuestre que la corriente i(t) en un circuito LRC en serie satisface la ecuacion diferencial L d^2i/dt^2 + R di/dt + 1/C i = E′(t), donde E′(t) denota la derivada de E(t).
5. Demuestre que la corriente \( i(t) \) en un circuito \( L R C \) en serie satisface la ecuación diferencial \[ L \frac{d^{2} i}{d t^{2}}+R \frac{d i}{d t}+\frac{1}{C} i=E^{\prime}(t), \] donde \(2 answers -
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Given \( f(x, y)=5 x^{4}-5 x^{2} y^{5}-3 y^{2} \) \[ \begin{array}{l} f_{x}(x, y)=\mid \\ f_{y}(x, y)=\mid \\ f_{x x}(x, y)= \\ f_{x y}(x, y)=\mid \end{array} \]2 answers -
Given \( f(x, y, z)=\sqrt{3 x-2 y+6 z} \), find \( f_{x}(x, y, z)= \) \( f_{y}(x, y, z)= \) \( f_{z}(x, y, z)=[ \)2 answers -
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For each vector field \( \vec{F}(x, y, z) \), compute the curl of \( \vec{F} \) and, if possible, find a function \( f(x, y, z) \) so that \( \vec{F}=\nabla f \). If no such function \( f \) exists, e2 answers -
(1 point) Find the partial derivatives of the function \[ f(x, y)=x y e^{-6 y} \] \[ \begin{array}{l} f_{x}(x, \\ f_{y}(x \\ f_{x y}(x, 3 \\ f_{y x}(x, y)= \end{array} \]2 answers -
Calcula \[ \oint_{C}\left(\left(x^{2}+y\right) d x+\left(x^{2}+2 x y\right) d y\right) \] Donde \( \mathrm{C} \) es la curva: \( y^{2}=x ; y=-x \), desde \( (0,0) \) hasta \( (1,-1) \)2 answers -
Usa el Teorema de Green para evaluar la integral de línea \[ \oint_{C}\left(\left(y+e^{\sqrt{x}}\right) d x+\left(2 x+\cos \left(y^{2}\right)\right) d y\right) \] A lo largo de la curva \( C \) encer2 answers -
derivatives of \( f(x, y)=(2 x+5 y) e^{y} \) \[ f_{x x}(x, y)= \] \[ f_{x y}(x, y)= \] \[ f_{y x}(x, y)= \] \[ f_{y y}(x, y)= \]2 answers -
Given \( f(x, y)=-3 x^{4}+3 x y^{3}-y^{6} \) \[ \begin{array}{l} f_{x}(x, y)= \\ f_{y}(x, y)= \end{array} \]2 answers -
Given \( f(x, y)=-x^{3}-4 x y^{2}+3 y^{5} \), find the following numerical values: \[ f_{x}(2,4)= \] \[ f_{y}(2,4)= \]2 answers -
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1) Halle \( \frac{d y}{d x} \) para \( y=x^{2} \ln \left(\frac{x}{x+3}\right) \) 2) Utilice diferenciación logaritmica para determinar \( \frac{d y}{d x} \) para \( y=\frac{x}{\sqrt{3 x+2}} \). 3) De2 answers -
Given \( f(x, y)=-4 x^{2}+x y^{4}+4 y^{3} \), find the following numerical values: \[ f_{x}(3,4)= \] \[ f_{y}(3,4)= \]2 answers -
Given \( f(x, y, z)=\sqrt{-3 x-6 y+3 z} \) \[ f_{x}(x, y, z)= \] \[ f_{y}(x, y, z)= \] \[ f_{z}(x, y, z)= \]2 answers -
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