If and are the roots of the equation 1+x+x^2=0, then the matrix product bmatrix 1& & bmatrix bmatrix & 1& bmatrix is equal to

NDA 2017 Mathematics question

If and are the roots of the equation , then the matrix product is equal to

Answer: (B)

The product is . Here , ,

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-028699