if A is a square matrix of order 3 and det adjA=64 find detA and det A -1HELP NEEDED URGENT

det.(adj.A) = (det.A)n-1...... here n is order of A

det.(adj.A) = (det.A)2

=> (det.A)2 = 64

=> det.A = 8 ........ ans.

det.A-1 = 1/det.A

=> det.A-1 = 1/8 ..... ans

  • 11

thank u so much naveen.......

  • -1

mah pleasure..................

  • 1
What are you looking for?