NDA 2021 Mathematics question
If
Δ=
then what is
equal to?
Answer: (D)
Solution
Take 6 common from , so . Apply and : the determinant becomes . Take 3 common from and 4 from : \begin{vmatrix}$ d & a & g e & b & h f & c & i
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account