Question

If the value of the determinant |3 8| is 2
|x-10|
find the value of x.
Please solve this urgently.
​

Answer 1

Step-by-step explanation:

ANSWER

x=3+2

2

x

1

=

3+2

2

1

×

3−2

2

3−2

2

=3−2

2

(

x

−

2

1

)

2

=x+

x

1

−2

=3+2

2

+3−2

2

−2=4

So,

x

−

x

1

=

4

=±12 Ans