3. Show that the limit xy lim (x,y)-(0,0) x² + y² doesn't exist. Show work!

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A: x˙=yy˙=-x-x3

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Q: Example: Obtain the Fourier series for the periodic function below. f(t) Isana. -3 -2 -10 2

A: From given graph the function defined as…

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A: Function : x2+6x+8x2-3x+2

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Q: i do not think that this is correct

A: The divisors/factors of of 70 greater than 1 are {2,5,7,10,14,35,70}

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Q: 4X--X y = -x + 2y Stability with draw

A: x˙=-xy˙=-x+2y

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A: The inductive version of Ackermann's function is: Am, n=2n,if m=00,if m≥1, n=02,if m≥1, n=1Am-1, Am,…

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A: We have provided counter example

Q: 8. Describe the shaded region in polar coordinates. -2+ a. {(r, 0)| 0 ≤ r ≤ 4 cos 0, 0≤0 ≤/2} b.…

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A: Orthogonal projection of z  onto span v1 and v2  is the best approximation to z by vectors…