Use the second derivative test to classify any critical points of f(x, y) = x² + 2y² − x²y and determine whether each critical point is a maximum, minimum, saddle point, or none of these.

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Q: write the negation of the given statement in english sentence (5*5+15)<= 50.

A: Write the negation of the given statement in english sentence (5*5+15)&lt;= 50.

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Q: 3 Prove the following a) AxB-86A-V Bạ 6) (AXB) (CXD) = e) (AXB) (CxD)=pe Anc-pVB1D =. = (ANC) x…

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Q: || Ca

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Q: 3. Consider the root-finding problem f(x) = 9x² ² - 4x/5= 0 for x = [-1,1]; see figure (b). (a) With…

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Q: At the City National Credit Union, a 8%, $9,000 loan for 190 days had interest charges of $374.79.…

A: At the City National Credit Union, a 8%, $9,000 loan for 190 days had interest charges of $374.79.…

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Q: 2. Evaluate z²+1 Z (a) J₁2-2 (2-13dz. (b) √₁2-2|=1 (2²-4)²· √3dz.

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Q: 4. Evaluate -2π 1 (a) √² indy. (b) fo 3+sin 1 2+cos y dp. (c) f 1 (2+cos y)2 dp.

A: a. The given integral is: I=∫02π13+sinφdφ               I=2∫0π13+sinφdφ               1 Use…

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