Other Math Archive: Questions from November 03, 2022
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Find the second partial derivatives of \( f(x, y)=x^{3}+2 x^{2} y+2 x y^{2}+y^{3} \). \[ f_{x x}(x, y)= \] \[ f_{y y}(x, y)= \] \[ f_{x y}(x, y)= \] \[ f_{y x}(x, y)= \]2 answers -
Within the constraints (Np)min ≤ N ≤ (Np) max Y (NG)min ≤NG ≤ (Np)max write a computer program to investigate the error found in each No/N ratio, and compare it with the desired ratio. Then re
3-49 Dentro de las restricciones \( \left(N_{P}\right)_{\min } \leq N_{P} \leq\left(N_{P}\right)_{\operatorname{mix}} \) y \( \left(N_{G}\right)_{\min } \leq N_{G} \leq\left(N_{P}\right)_{\operatornam0 answers -
2 answers
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2 answers
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Let \( x, y, z \) be (non-zero) vectors and suppose \( w=-16 x-12 y+2 z \). If \( z=4 x+3 y \), then \( w= \) Using the calculation above, mark the statements below that must be true. A. \( \operatorn2 answers -
Identify the equation of the surface. \[ \begin{array}{l} f(x, y)=x^{2}+y \\ f(x, y)=y^{2} x \\ f(x, y)=y^{2}+x \\ f(x, y)=x^{2} y \end{array} \]2 answers -
Given \( f(x, y)=-2 x^{4}+6 x^{2} y^{2}-y^{6} \) \( f_{x}(x, y)= \) \[ f_{y}(x, y)= \] \[ f_{x x}(x, y)= \] \[ f_{x y}(x, y)= \]2 answers -
47. If \( \frac{3 x-y}{x+y}=\frac{5}{8} \), then \( \frac{x}{y}= \) ? A. \( \frac{2}{19} \) B. \( \frac{13}{19} \) C. \( \frac{5}{8} \) D. \( \frac{13}{7} \) E. \( \frac{13}{4} \)2 answers