EBK SINGLE VARIABLE CALCULUS: EARLY TRA
EBK SINGLE VARIABLE CALCULUS: EARLY TRA
8th Edition
ISBN: 9780176743826
Author: Stewart
Publisher: VST
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Chapter H, Problem 18E

Prove the following properties of complex numbers.

  1. (a) z + w ¯ = z ¯ + w ¯
  2. (b) z w ¯ = z ¯ w ¯
  3. (c) z ¯ n = z ¯ n , where n is a positive integer [Hint: Write z = a + bi, w = c + di.]
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Problem 11 (a) A tank is discharging water through an orifice at a depth of T meter below the surface of the water whose area is A m². The following are the values of a for the corresponding values of A: A 1.257 1.390 x 1.50 1.65 1.520 1.650 1.809 1.962 2.123 2.295 2.462|2.650 1.80 1.95 2.10 2.25 2.40 2.55 2.70 2.85 Using the formula -3.0 (0.018)T = dx. calculate T, the time in seconds for the level of the water to drop from 3.0 m to 1.5 m above the orifice. (b) The velocity of a train which starts from rest is given by the fol- lowing table, the time being reckoned in minutes from the start and the speed in km/hour: | † (minutes) |2|4 6 8 10 12 14 16 18 20 v (km/hr) 16 28.8 40 46.4 51.2 32.0 17.6 8 3.2 0 Estimate approximately the total distance ran in 20 minutes.
X Solve numerically: = 0,95 In x
X Solve numerically: = 0,95 In x
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