If [\table 9,-1,4;-2,1,3] = A + [\table 1,2,-1;0,4,9], then find the matrix A.

CBSE Class 12 Math 2013 Solved Paper - Question 5

Question : 5 of 29

Marks: +1, -0

[\table 9,-1,4;-2,1,3]

= A +

[\table 1,2,-1;0,4,9]

, then find the matrix A.

Solution:

[\table 9,-1,4;-2,1,3]

= A +

[\table 1,2,-1;0,4,9]

⇒ A =

[\table 9,-1,4;-2,1,3]

[\table 1,2,-1;0,4,9]

⇒ A =

[\table 9-1,-1-2,4+1;-2-0,1-4,3-9]

⇒ A =

[\table 0,-3,5;-2,-3,-6]

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