. If is a square matrix of order 3
such that 1 adj A1=36 , find | A |
Best Answer
Explanation:
Given, 1 adj A1=36
To find : | A |
Using the formula,1 adj.A1=|A|n1 ---------------------(1)
Here,n=3 ( n is the order of square matrix)
Equation (1) will be,
36=|A|3-1
(6)2=|A|2
After equating both the sides, it implies that |A|=±6.
Final Answer:
Hence, The value of |A|=±6..
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