Cos6x + cos2x + 2 cos4x

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

Asap 25 pts + brainlest to right/best answer

Two rigid transformations are used to map abc to qrs. the first is a translation of vertex b to vertex r. what is the second transformation? a reflection across the line containing ab a rotation about point b a reflection across the line containing cb a rotation about point c