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Grade: 12
        
Let A and B two square matrices such that(A^2)B =BA. If (AB)^10 =(A^k)(B^10), then k is equal to ?
2 years ago

Answers : (1)

Sudhir Jain
11 Points
							
for (AB)ABAB= AA2BB=A3B2
Similarly (AB)3=A7B3
(AB)4=A15B4
 
Now (AB)10=A1023B10 
 
 
Solution by :-  
Mr. Sudhir Jainam
 
one year ago
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