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Comment: I changed the problem from first order to a second order differential equation.
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#prob:- 7 | #unsolved #prob:-7 |
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# This was a first order differential equation, which was solved by sage. I made it a second order differential eqn (simply by substituting the first order derivative by second order derivative). Sage prompted us "Is k positive,negative or zero" | |
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* Aashita Kesarwani, Student, IIT Roorkee | * Aashita Kesarwani, Student, IIT Roorkee. |
Book
Advanced Engineering Mathematics
Author
Erwin Kreyszig
Edition
8th Edition
#unsolved #prob:-7 x = var('x') k = var('k') y = function('y',x) sol=desolve(diff(y,x,x) + k*y - exp(-k*x), [y,x]) sol # This was a first order differential equation, which was solved by sage. I made it a second order differential eqn (simply by substituting the first order derivative by second order derivative). Sage prompted us "Is k positive,negative or zero"
Solution by:
- Aashita Kesarwani, Student, IIT Roorkee.
- Praveen Kumar, Student, IIT Roorkee
- Swati Ahuja,Student,IIT Roorkee