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Book
Advanced Engineering Mathematics
Author
Erwin Kreyszig
Edition
8th Edition
A = Matrix([[3,0,2,2],[-6,42,24,54],[21,-21,0,-15]]) print A A = Matrix([[3,0,2,2],[-6,42,24,54],[21,-21,0,-15]]) cols=A.columns() print cols mult1=cols[0].cross_product(cols[1]) print mult1 mult1!=(0,0,0) print "Rank is at least 2" mult2=cols[1].cross_product(cols[2]) print mult2 mult2*(-3/2) mult2*(-3/2)==mult1 These 3 vectors r linearly dependent Therefore rank is 2
Solution by: anp.