Book
Advanced Engineering Mathematics
Author
Erwin Kreyszig
Edition
8th Edition
x=var('x') w=var('w') W=det(matrix([[exp(-x)*cos(w*x),exp(-x)*sin(w*x)],[exp(-x)*(-w*sin(w*x)-cos(w*x)),exp(-x)*(w*cos(w*x)-sin(w*x))]])) show(W.simplify_rational()) #W!=0, so the basis functions are linearly independent
Solution by:
- namdev, teaching, RGIT
- dilip, teaching, rgit