Class 12th

The given system of eqⁿ can be written in matrix form as AK = B.

The given system of solution in matrix form is AK = B.

The given system of equation in matrix form is

          AK = B

This is a Multiple Choice Questions as classified in NCERT Exemplar

Answer- d

Explanation- as we know that Ev = E_o/ $\sqrt[]{2}$  so E₀= Ev $\sqrt[]{2}$ so net voltage is 220 $\sqrt[]{2}$ V

The given system of eqⁿ can be written in matrix form as

       AK = B

The given system of eqⁿ in matrix form is AK = B

The given system of eqⁿ in matrix form is AK = B.

Then, |A| = 5 x 3 - 7 x 2 = 15 - 14 = 1 ≠ 0

∴ The system has a unique solution.

∴ k = 2 and y = -3

The given system of eqⁿ in matrix form is AK = B

= 5 x 28 -13 + 4 x (-9)

= 140 - 13 - 76

= 51 ≠ 0 .

The given system of eqⁿ are consistent

The given system of eqⁿ using matrix form can be written as AK = B

$=3\left(0-5\right)+1\left(0+3\right)-2\left(0-6\right)$

= -15 + 3 + 12

 = -15 + 15

= 0