Question

Choose the correct answer from the given alternatives in the following question:

If A = `[(lambda,1),(-1, -lambda)]`, and A^-1 does not exist if λ = _______

Options

• 0

• ± 1

• 2

• 2

Answer 1

If A = `[(lambda,1),(-1, -lambda)]`, and A^-1 does not exist if λ = ± 1