**Q1: **

Complete the following statement: a linear operator is self-adjoint if and only of it is .

- Acontinuous
- Bbounded
- Cnormal
- Dsymmetric

**Q2: **

Find the adjoint matrix of the following matrix.

- A
- B
- C
- D

**Q3: **

Find the adjoint matrix of the following matrix.

- A
- B
- C
- D

**Q4: **

Find the adjoint matrix of the following matrix.

- A
- B
- C
- D

**Q5: **

Find the adjoint matrix of the following matrix.

- A
- B
- C
- D

**Q6: **

Find the adjoint matrix of the following matrix.

- A
- B
- C
- D