CBSE Class 12-commerce Answered
Asked by rrajeshthapa1998 | 17 Mar, 2019, 12:36: PM
Expert Answer
Let us multiply column-2 by 4 and column-3 by 2, hence the determinant becomes 8 times of its initial value
Now, in the above determinant let us do, C2-3C1 ( column-1 is multiplied by 3 and subtracted from column-2)
and C3-C1 (column-1 is subtracted from column-3)
hence |A| = (4×56)/8 = 28
Answered by Thiyagarajan K | 17 Mar, 2019, 02:06: PM
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