Question

what is the nature of solution if D = 0 in Cramer rule

Answer 1

If D = 0 then Cramer Rule fails, as the determinant of the coefficient array is zero. Consequently, the system of equations then has either infinitely many solutions or no solutions.

In terms of Cramer's Rule, "D = 0" means that you'll have to use some other method to solve the system.

Answer 2

Answer:

if d=0 we cannot get the answer as anything divided by 0 is 0 itself therefore there is no solution for such a sum