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98年 - 98 國立暨南國際大學_轉學生入學考試試題_資工系二:微積分#124587
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6. (10%) Evaluate
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2. (10%) Use a differential to estimate cos 46°. (=1.41421,π=3.14159)
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3. (10%) Find the volume of the solid generated by revolving the regionbounded by y=x² and y=2x about the x-axis.
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4. (10%) Definition: The function ln(x) = , x > 0, is called the natural logarithm function. Prove that In(ab) = ln(a) + In(b) for a, b > 0.
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5. (10%) Find the function f(x), such that f(t)dt = -5.
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(a) (2%) Show that it is increasing.
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(b) (3%) Find the greatest lower bound.
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(c) (5%) Find the least upper bound.
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8. (10%) Verify that the improper-integral diverges.
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9. (10%) Show that the series converges on [-1, 1).
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10. (10%) Use the chain rule to find the rate of change of f(x,y) = (x3 + y3) with respect to t along the curve r(t) = cos(t) i + sin(t) j.
#529878