quiz-02-3 - Choice Selected Points (6 x y + 8 y 2 )dx + (8...

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System Homepage » Class Homepage » Student Details » Student Assignment Details MATH2860 (Summer 2008): Lecture Quizzes : Gradebook Welcome Nasir Awan [ My Profile ] Assignment detail for Nasir Awan in Quiz 2: Nasir Awan Login: 100355678 Email: ameernaser@hotmail.com Student ID: 100355678 Assignments completed: 9 Assignments active: 0 Question Grade 1 If we want to use Euler's Method to approximate the solution to with initial condition y(8) = 9 and using a step size of h = 0.05, what is the value of y1? Your Answer: Correct Answer: 37.8 Instructors Comment: 0.0 2 The differential equation is linear. Choice Selected True Yes [answer withheld] False No [answer withheld] Number of available correct choices: 0 Partial Grading Explained Instructors Comment: 1.0 3 Conisider the linear differential equation y' = x 2 y + cos(x). What is the appropriate integrating factor for this equation? Your Answer: y Correct Answer: exp(-x^3/3) Instructors Comment: 0.0 4 Which of the following differential equations are exact? Select all that apply.
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Unformatted text preview: Choice Selected Points (6 x y + 8 y 2 )dx + (8 x y + 4 y 2 )dy = 0 Yes-1 (6 + 8 x+ 8 y)dx + (4 + 6 x + 8 y)dy = 0 Yes-1 (6 sin x + 8 cos y)dx + (8 sin x )dy = 0 Yes-1 (6 x 8 + 8 y)dx + (4 sin y + 8 x) dy = 0 Yes +1 Number of available correct choices: 0 Partial Grading Explained Instructors Comment: 0.0 Gradebook Help Logout Maple T.A. - Gradebook http://mapleta2.science.uoit.ca:8080/mapleta/gradebook/gradebook.do 1 of 2 3/1/2010 5:16 PM Question Grade 5 The solution of the differential equation can be used to find an integrating factor to convert the differential equation into an exact differerential equation. Choice Selected Points True Yes-1 False No Number of available correct choices: 0 Partial Grading Explained Instructors Comment: 0.0 Maple T.A. - Gradebook http://mapleta2.science.uoit.ca:8080/mapleta/gradebook/gradebook.do 2 of 2 3/1/2010 5:16 PM...
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This note was uploaded on 11/11/2010 for the course DEFFERENTI 2080 taught by Professor Kidnan during the Spring '10 term at UOIT.

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quiz-02-3 - Choice Selected Points (6 x y + 8 y 2 )dx + (8...

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