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Unformatted text preview: MATH 17110c, Assignment 8 Guidelines ,_ _V _
Begin 'by answering the questions in the space provided; you may write on bOth sides of
the paper. Additional sheets may be attached if necessary. Staple all sheets together before submission. Put down the names of all group members in the'top right Corner. Write neatly
and legibly; untidy presentation may lead to appropriate penalization, ' Due: Friday, March 26th ‘
. (10 marks) An equilateral triangle is expandinglin such a way that it remains equilateral at
every instant. Given that the area of the triangle is increasing at 9 square centimetres per second, determine the rate at which the side of the triangle is increasing; when the height of
the triangle is 6 centimetres. . (10 marks) Question 16 on page 219 in the text. . (10 tam) Suppose that ' f is a function, and that it is twice differentiable’at a point a. Let
P(:r) = A332 + Ba: + C be a quadratic polynomialsatisfying the following three conditions: Pm) =f(a); P701) '=f'<a); P”(a) =f”(a)~ Show that P is the quadratic approximation to f around w = a;. »  .L.
21k 4M +£'<«5(X'=wo~).+ £90....f =5 Q¥<°st)._ Wu
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 Spring '08
 STILLER
 Math, Following, Regular polygon, the'top right Corner

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