If A= bmatrix & - & bmatrix then what is AA^T equal to (where A^T is the transpose of A)?

NDA 2017 Mathematics question

If then what is equal to (where is the transpose of A)?

Answer: (B)

$ = α&-α

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

Question ID VK-028601