Question

If Matrix A = [1−1−11], and A2=kA, then write the value of k.

Answer 1

Answer:

answer k=2

Step-by-step explanation:

since matrix of A={1-1-11}

A2=kA

A2÷A=k

k=2

Answer 2

Given:

$\bold{\ A = \left[\begin{array}{ccc}1&-1&-11\ \end{array}\right] }$ and $\bold{A2 = kA}$

To prove:

Find the value of k.

Solution:

$\Rightarrow A2 = KA \\\\\ if:\\\\ \Rightarrow \frac{A \times 2}{A} = k\\\\\Rightarrow 2 = k$

So, the final value of k is = 2.