Book
Advanced Engineering Mathematics
Author
Erwin Kreyszig
Edition
8th Edition
x=var('x')
y=function('y',x)
de=(4*diff(y,x,x)+4*diff(y,x)-3*y)
desolve(de,y)
Solution by:
<PRABHAT KUMAR TEOTIA>, <student>, <ARMY INSTITUTE OF TECHNOLOGY,PUNE>
<NARENDRA KUMAR>, <student>, <ARMY INS. OF TECH.,PUNE>