Find the determinant of the matrix .

The linear transformation represented by a matrix transforms the unit square into a parallelogram with vertices , , , and . What is the magnitude of the determinant of ?

What does it mean when a matrix is invertible? (Choose all correct answers)

You have attended  2 lectures in MCD4500, Week 1.

The projection of the vector in the direction of the vector  is

Let the points be defined as  , ,  and . The scalar resolute of   on is equal to 

If , then the angle between vectors and is equal to

Let and . Then is equal to 

If two vectors are parallel, their dot product is non-zero.