[2x+3y=13],[5x-4y=8-2]

Solve the equations 3x+4y+5z=18,2x+y+8z=13,5x-2y+7z=20 by matrix inversion method.

Solve the equations 3x+4y+5z=18,2x-y+8z=13,5x-2y+7z=20 by Gauss-Jordan method.

By Cramer's rule solve the system of equations 3x+4y+5z=18,2x+y+8z=13,5x-2y+7z=20 .

Solve the following system of equations by using Cramer,s ruel . 3x+4y+5z=18,2x-y+8z=13,5x-2y+7z=20

The matrix form of the system of equations 2x-y+8z=13,3x+4y+5z=18 , 3x-2y-4z=-13 is

By Matrix inverse method, solve 3x+4y+5z = 18, 2x-y+8z=13, 5x-2y+7z = 20 .

Classify the following pairs of lines as coincident, parallel, perpendicular or intersecting : (i) 6x+14y-16=0 , 12x+28y-32=0 (ii) 3x-4y=8 , 3x+4y=11 (iii) 5x-2y=7 , 2y-5x=-7 (iv) 4x+7y=19 , 7x-4y=-2 (v) x-2y=7 , 4y-2x=13

Prove that |[x+y, x, x],[5x+4y, 4x, 2x], [10x+8y, 8x, 3x]|=x^3

Prove that: |[x+y,x,x],[5x+4y,4x,2x],[10x+8y,8x,3x]|=x^3 .