If - 5 3 8- 2 0 1- 1 2 3 - then the co-factor of the element a23 is

Δ=|[ 5 amp; 3 amp; 8; 2 amp; 0 amp; 1; 1 amp; 2 amp; 3 ]| Minor of a_23 =M_23=|[ 5 amp; 3; 1 amp; 2 ]|=10 3=7 ⇒ Co factor of a_23=( 1)^ ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Minor and Cofactor of a Matrix

If Δ=|[ 5 3 8...

Question

If $Δ = ∣ ∣ ∣ ∣ \begin{matrix} 5 & 3 & 8 2 & 0 & 1 1 & 2 & 3 \end{matrix} ∣ ∣ ∣ ∣$ , then the co-factor of the element $a_{23}$ is

1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

- 7

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

8

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

Suggest Corrections

Similar questions

A = ⎡ ⎢ ⎣ \begin{matrix} 1 & - 1 & 1 2 & 1 & - 3 1 & 1 & 1 \end{matrix} ⎤ ⎥ ⎦

10 B = ⎡ ⎢ ⎣ \begin{matrix} 4 & 2 & 2 - 5 & 0 & α 1 & - 2 & 3 \end{matrix} ⎤ ⎥ ⎦

B

o f A

α

∣ ∣ ∣ ∣ ∣ \begin{matrix} x^{n} & x^{n + 2} & x^{n + 3} y^{n} & y^{n + 2} & y^{n + 3} z^{n} & z^{n + 2} & z^{n + 3} \end{matrix} ∣ ∣ ∣ ∣ ∣

= (x - y) (y - z) (z - x) (\frac{1}{x} + \frac{1}{y} + \frac{1}{z})

n

^{'} 4^{'}

∣ ∣ ∣ ∣ ∣ ∣ \begin{matrix} 1 & 3 & 5 & 1 2 & 3 & 4 & 2 8 & 0 & 1 & 1 0 & 2 & 1 & 1 \end{matrix} ∣ ∣ ∣ ∣ ∣ ∣

A_{1}, B_{1}, C_{1} . . . .

a_{1}, b_{1}, c_{1} . . . .

Δ = ∣ ∣ ∣ ∣ \begin{matrix} a_{1} & b_{1} & c_{1} a_{2} & b_{2} & c_{2} a_{3} & b_{3} & c_{3} \end{matrix} ∣ ∣ ∣ ∣,

∣ ∣ ∣ \begin{matrix} B_{2} & C_{2} B_{3} & C_{3} \end{matrix} ∣ ∣ ∣ =

Using Cofactors of elements of second row, evaluate.

Join BYJU'S Learning Program