## How do you verify the Cayley Hamilton theorem for a given matrix?

If A is an n × n matrix with characteristic polynomial pA(x), then pA(A) = On. That is, every matrix is a “root” of its characteristic polynomial (Cayley-Hamilton Theorem).

**Which of the following can be find by Cayley-Hamilton theorem *?**

In linear algebra, the Cayley–Hamilton theorem (named after the mathematicians Arthur Cayley and William Rowan Hamilton) states that every square matrix over a commutative ring (such as the real or complex numbers or the integers) satisfies its own characteristic equation.

**How do you find the inverse of a matrix manually?**

How to Use Inverse Matrix Formula?

- Step 1: Find the matrix of minors for the given matrix.
- Step 2: Then find the matrix of cofactors.
- Step 3: Find the adjoint by taking the transpose of the matrix of cofactors.
- Step 4: Divide it by the determinant.

### Which of the following matrices does not have inverse?

1 Answer. So (2−1−42) ( 2 − 1 − 4 2 ) has no inverse.

**How do you show that a matrix has no inverse?**

If the determinant of the matrix is zero, then it will not have an inverse; the matrix is then said to be singular.

**Which of the below condition is incorrect for the inverse of matrix A?**

6. Which of the below condition is incorrect for the inverse of a matrix A? Clarification: The matrix should not be a singular matrix. A square matrix is said to be singular |A|=0.

#### What is the Cayley-Hamilton theorem for 2×2 zero matrices?

Then the Cayley-Hamilton theorem says that the matrix p ( A) = A 2 − 4 A + 2 I is the 2 × 2 zero matrix. In fact, we can directly check this:

**How do you find the Cayley Hamilton theorem?**

If the ring is a field, the Cayley–Hamilton theorem is equal to the declaration that the smallest polynomial of a square matrix divided by its characteristic polynomial. p (A) = (a) – (a 1,1) = 0 is obvious.

**Does Cayley’s theorem hold for all quaternionic matrices?**

The theorem holds for broad quaternionic matrices. Cayley in 1858 said it for 3 × 3 and smaller matrices, but only published a proof for the 2 × 2 case. The general case was first verified by Frobenius in 1878.

## What is the difference between Cayley and Hamilton’s theory?

While maintaining opposing position about how geometry should be studied, Hamilton always remained on the best terms with Cayley. Hamilton proved that for a linear function of quaternions there exists a certain equation, depending on the linear function, that is satisfied by the linear function itself.