Co-factors
The co-factor of the element a ij is (-1) i+j times its minor a ij . We shall denote the cofactor of an element by the corresponding capital letter. Cofactor of a i j = A i j = (-1) i + j M i j Consider the determinant The minor of a 1 1 can be obtained by deleting the fir..
The co-factor of the element a ij is (-1) i+j times its minor a ij . We shall denote the cofactor of an element by the corresponding capital letter. Cofactor of a i j = A i j = (-1) i + j M i j Consider the determinant The minor of a 1 1 can be obtained by deleting the fir..Summary
. If A =[a i j ] m x n is a matrix of order mxn. The minor of a i j of |A|, denoted by M i j , is given by the determinant which is obtained by deleting i t h row j t h column of |A|. The co-factor of the determinant of the A = [a i j ] m x n , denoted by A i j is given by A i j = (-1) i ..
. If A =[a i j ] m x n is a matrix of order mxn. The minor of a i j of |A|, denoted by M i j , is given by the determinant which is obtained by deleting i t h row j t h column of |A|. The co-factor of the determinant of the A = [a i j ] m x n , denoted by A i j is given by A i j = (-1) i ..Summary
The fundamental principle of counting (F.P.C) states that if an operation can be performed in m different ways and if for each such choice, another operation can be performed in n different ways, then both operations, in succession can be performed in exactly mn different ways. The principle can ..
Find the scale factor for the dilation.
Find the scale factor for the dilation. => 2.5 or 6.5 or 3 or 2..
Find the scale factor that maps PQRS onto ABCD.
Find the scale factor that maps PQRS onto ABCD. => 1.5 or 3 or 2 or 0.5..
Identify the scale factor for the Figure 1 to Figure 2.
Identify the scale factor for the Figure 1 to Figure 2. => 4 or 3 or 1.5 or 2..
Find the scale factor for the dilation.
Find the scale factor for the dilation. => 4 3 or 1 1 2 or 2 3 or 3 4..
Find the scale factor that maps MNOPQ onto ABCDE.
Find the scale factor that maps MNOPQ onto ABCDE. => 6 or 2 or 3 or 0.5..
Find the scale factor from the larger triangle to the smaller triangle..
Find the scale factor from the larger triangle to the smaller triangle, if the two triangles are similar. => 2 : 1 or 5 : 4 or 6 : 5 or 3 : 2..
Find the scale factor of dilation of the rectangle ABCD to the rectang..
Find the scale factor of dilation of the rectangle ABCD to the rectangle AEFG. => 5 or 5 3 or 2.5 or 3..
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