Points (a,a,c),(1,0,1) and (c,c,b) are collinear if
a(-c) - a(b-c) + c(c) = 0
- ac - ab + ac + c2 = 0
c2 = ab
If A is a square matrix of order 3 and |A| = 7 then |AT| =
The determinant of a square matrix is the same as the determinant of its transpose.
The value of determinant
If A is a square matrix of order 3 and |A| = 5 then |3A| = ?
If A is square matrix of order 3 and |A| = 7 then |AT| = ______
The determinant of a square matrix is the same as the determinant of its transpose. Therefore |A’| = 7
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