3. [June 28] Let T : R² → R² be the linear transformation that reflects a vector over the line y = -x and then rotates i
Posted: Wed Jul 06, 2022 11:59 am
3. [June 28] Let T : R² → R² be the linear transformation that reflects a vector over the line y = -x and then rotates it by 30° counterclockwise. (a) Draw a picture showing the effect of T on the standard basis vectors e, and e2, and use this to compute the 2 x 2 matrix A that corresponds to T. (b) Use the formulas seen in class to write down the 2 × 2 matrix B corresponding to rotation by 30° counterclockwise, and the matrix C corresponding to reflection over y = -x. (c) Verify that B(Cx) = Ax.