यदि `A = [(a,b),(c,d)]` हो, तो सिद्ध कीजिये कि `A^(2) - (a + d) A + (ad - bc) I = O`

If a, b, c and are real numbers and A =[{:( a,b),(c,d) :}] prove that A^(2) -(a+d) A+(ad-bc) I=0

If a, b, c, d in R and A=[(a,b),(c,d)] , show that A^2-(a+d)A+(ad-bc)I is a null matrix.

If A={:[(a,b),(c,d)] and I={:[(1,0),(0,1)] Show that, A^(2)-(a+d)A=(bc-ad)I .

If A = ((a,b),(c,d)) , such that ad - bc != 0 then A^(-1) is :

If A=((a, b), (c, d)) and I=((1, 0), (0, 1)) show that A^(2)-(a+d)A=(bc-ad)I_(2).

If A =[{:(a, b), (c, d):}] " then " A^(-1) = ____. a) (1)/(ad-bc)[(b,-c),(-d,a)] b) (1)/(ab-cd)[(b,-c),(-d,a)] c) (1)/(ab-cd)[(b,d),(c,a)] d)None of these

If {:A=[(a,b),(c,d)]:} such that ad - bc ne 0 , then A^(-1) , is

If {:A=[(a,b),(c,d)]:} such that ad - bc ne 0 , then A^(-1) , is