Find the extrema and/or the saddle points of the functions. a) f(x, y) = 9 - 2x + 4y − x² − 4y²

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A: NOTE: Refresh your page if you can't see any equations. . take derivative

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Q: Exercise 1. Show that-9n² + 2n +6 is odd if n is odd.

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A: Ratio is =0.91/11.65=0.078

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Q: A consumer purchased a computer after a 20​% price reduction. If x represents the​ computer's…

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Q: 5. y = x²lnx 6. y = e-*csc2x

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