14.4.41 a. The usual way to evaluate the improper integral I= e dx is to first calculate its square: 00 00 00 (2-) dxdy. 12 = e 0 0 Evaluate the last integral using polar coordinates and solve the resulting equation for I. 2e b. Evaluate lim erf(x) = lim x00 0 X00 Va dt al-

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Q: 1. Suggest ways to avoid loss of significance in these calculations. (a) √√x4+4-2 (b) ln(x+√x² +1)…

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Q: 3. a. b. Evaluate the following integrals 2dx dx cos²x√4 tanx - tan² x sin(√x)dx J I sin

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