2542261
Description
Quiz by Joseph Stevens, updated more than 1 year ago
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Created by Joseph Stevens
about 9 years ago
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Question 1
Question
Find the integrating factor for which
Answer
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sin x
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cot x
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cosec^2 x
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ln|cot x|
Question 2
Answer
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y= cos x + cot x ln|sinx| + c
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y = tan x + ln|cot x|
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y = cosec x + cot x ln|cot(x/2)|+ c
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y=sin x - tan x ln|tan(x/2)| + c
Question 3
Question
Find the complimentry function of the following differential equation.
Answer
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y=e^-2x (Acos √3x + Bsin √3x)
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y= Ae^2x +Bie^3x
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y= Ae^√3ix + Bcos 2x
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y= e^4x +A
Question 4
Answer
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y= 4e^-x + 6sin x + 4cos x
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y= e^-2x (Acos √3x + Bsin √3x)
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y=(3/4)e^-x + (6/5) sin x - (4/5) cos x
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y = e^x + 4sin x + 7cos x
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