Evaluate `A=|(2,-3,-5),(6,0,4),(1,5,-7)|`Also find minor and cofactor of elements in the 2nd row of determinant and verify`-a_21M_21+a_22M_22-a_23M_23=value of A`where `M_21,M_22,M_23 are minor of a_21,a_22,a_23`

Evaluate A=|(2,-3,-5),(6,0,4),(1,5,-7)| Also find minor and cofactor of elements in the 2nd row of determinant and verify -a_21C_21+a_22C_22+a_23C_23=value of A where C_21,C_22,C_23 are cofactors of a_21,a_22,a_23

Find the minors and cofactors of the elements of the following determinants. |(5,-6),(2,1)|

Find the minor and cofactor of element of the determinant. |(2,-1,-3),(1,2,-1),(5,7,2)|

For the following determinant |(2,1,3),(3,3,4),(2,1,5)| verify that a_21A_21+a_22A_22+a_23A_23=|(A)|

Show that m-1 is a factor of m^21-1 and m^22-1

For the following determinant |(2,1,3),(3,3,4),(2,1,5)| verify that a_21A_11+a_22A_12+a_23A_13=0

If A(2,3,-4),B(m,1,-1),C(3,2,2) and G(3,2,n) is the centroid of DeltaABC, then the values of m and n respectively are

If A(2,3,-4),B(m,1,-1),C(3,2,2) and G(3,2,n) is the centroid of DeltaABC, then the values of m and n respectively are

If A=[[a_11,a_12],[a_21,a_22]] then minor of a_11 (i.e.,M_11) is

Find the area of the circle if its radius is 2.1 m.