Question

Solve the equation by cramers rule
vii) 2x + 6y+11=0,6x + 20y -6z+3=0, 6y - 18z+1=0​

Answer 1

Step-by-step explanation:

So, the system is inconsistent. Alternate method: The given system of equations is equivalent to the single matrix equation: We shall reduce the coefficient matrix A to triangular form by E-row operations on it and apply the same operations on the right-hand side, i.e. on the matrix B. Performing R2 → R2 - 3R1, we have Performing R3 → R3 - 3R2, we have The last equation of this system is 0x + 0y + 0z = -91. This shows that the given system is not consistent.

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