1. In the matrix an means “any value.” Show that the determinant of is regardless of the values. 2. Compute the inverse of the matrix by first computing the adjoint matrix. 3. i ii If 123 are...

1. In the matrix

an

means “any value.” Show that the determinant of

is
regardless of the

values.

2. Compute the inverse of the matrix by first computing the adjoint matrix.

3.

<sub>i

i

i</sub>

If

<sub>1

2

3</sub>
are distinct, show that there is precisely one curve of the form

²
passing through

₁,

₂, and

_3.