Question

please solve the above question. ​

Answer 1

The answer is 6 hope it helps u

Answer 2

Answer:

d) is the correct option

Step-by-step explanation:

$\left[\begin{array}{ccc}1&1\\1&2\\1&3&\end{array}\right]$  $\left[\begin{array}{ccc}1&1&1\\1&2&3\end{array}\right]$

after multiply A' + A

$\left[\begin{array}{ccc}2&3&4\\3&5&7\\4&7&10\end{array}\right]$

Now determinant:

2(50 - 49) - 3(30 - 28) +4(21 - 20)

2(1) -3(2) + 4(1)

2 -6 + 4

6 - 6

= 0