Find the co-factor of `a_12` in the following : `|(2,-3,5),(6,0,4),(1,5,-7)|`.

What is the co-factor of 7 in the determinant |(4,5,6),(5,6,7),(13,15,17)| .

If A_("ij") is the cofactor of the element a_("I j") of the determinant |(2,-3,5),(6,0,4),(1,5,-7)| , then write the value of a_(32). A_(32) .

Find the mode of the following distributions:(c.)2,3,4,5,0,1,3,3,4,3

Find the mean of the following data 1,2,3,4,5,6,7,8,9 and 10

Find the mode of the following distributions:(b)2,5,4,3,2,8,7,2,4,5

Solve for x : |(x-2,2,5),(x-7,3,6),(2x-6,4,7)|=0

Show that |(1,2,3),(4,5,6),(2,4,6)| = 0 .

Answer the following questions Find the mode of the following data: 2,6,4,5,0,2,1,3,2,3

Find the minors and cofactors of the elements of the determinants : |(1,0,4),(3,5,2),(-9,8,6)|

Find the roots of the following equations: (5x-6)/(4x-1)=(2x+3)/(3x+2)