Question

7) To solve x + y = 3; 3x - 2y - 4 = 0 by determinant method find D. *​

Answer 1

Answer:

Step-by-step explanation:

The value of this determinant is found by finding the difference between the diagonally down product and the diagonally up product

now here, the equation is.

x + y = 3

3x - 2y = 4

The denominator determinant, D, is formed by taking the coefficients of x and y from the equations written in standard form.

d=

according to formula,

D = ( 1 ) × ( -2 ) - ( 1 ) × ( 3 )

D = - 2 - 3

D = -5

Answer 2

x + y = 3

3x - 2y = 4

D=(1/3 1/-2)= (1×-2)-(1×3) = -2 -3= -5