Standard matrix for reflection across the line y=-x

1. The problem statement, all variables and given/known data

Let T : R²→R², be the matrix operator for reflection across the line L : y = -x



a. Find the standard matrix [T] by finding T(e1) and T(e2)



b. Find a non-zero vector x such that T(x)...



Standard matrix for reflection across the line y=-x

Standard matrix for reflection across the line y=-x