# Precalculus Examples

Step 1

The identity matrix or unit matrix of size is the square matrix with ones on the main diagonal and zeros elsewhere.

Step 2

Multiply the scalar by the identity matrix.

Step 3

Step 3.1

Multiply by each element of the matrix.

Step 3.2

Simplify each element in the matrix.

Step 3.2.1

Multiply by .

Step 3.2.2

Multiply by .

Step 3.2.3

Multiply by .

Step 3.2.4

Multiply by .

Step 3.2.5

Multiply by .

Step 3.2.6

Multiply by .

Step 3.2.7

Multiply by .

Step 3.2.8

Multiply by .

Step 3.2.9

Multiply by .