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Unformatted text preview: 8. Given 2 x 33 y 2 = 8, ﬁnd d 2 y dx 2 . 9. When a circular plate of metal is heated in an oven, its radius increases at the rate of 0 . 01cm/min. At what rate is the plate’s area increasing when the radius is 50cm. 10. Approximate (a) 3 √ 1003 (b) (1 . 002) 100 11. A and B are walking on straight streets that meet at right angles. A approaches the interseciton from north at 2m/sec.; B moves away from the interseciton to east at 1m/sec. Let θ be the angle at B of the triangle OAB , where O denotes the intersection point. At what rate is θ changing when A is 10m away from O and B is 20m away from O . 2...
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This note was uploaded on 04/30/2010 for the course MATHEMATIC MATH 119 taught by Professor Tor during the Spring '10 term at Middle East Technical University.
 Spring '10
 Tor
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