equations
2xy' + y³ e^(-2x) = 2xy
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September 2016
Bernoulis
y' + y = e×
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DE
(x²+4) y' + 3 xy = x
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DE: $(x²+4) y' + 3 xy = x$
(x²+4) y' + 3 xy = x
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Problem 427 - Interior Members of Nacelle Truss by Method of Sections
Problem 427
Determine the force in bars BD, CD, and DE of the nacelle truss shown in Fig. P-427.
[HELP] Method of Section and Joints
Please help me solve this one!
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another probability: number of ways for 4 girls and 4 boys to seat in a row
In how many ways can 4 girls and 4 boys be seated in a row containing 8 seats if boys and girls must sit in alternate seats?
The answer in my notes is 1,152..
I need a solution please.
Thanks in advance.
probability
A committee of 3 is to be selected from a group of 5 girls and 3 boys. What is the probability that two boys are selected?
The answer in my notes is: 15/56.
I need a solutions on how it came up to 15/56.
Please help..thank you..
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Friction
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Analysis of structures
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