Matrix Multiplication: Find an example of a 2 x 3 matrix A and a 3 x 2 matrix B such that, letting T(x) = Ax and U(x) = Bx, the composition T•U is a reflection over
the line y = x.

this answer is !

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

answer is 1

step-by-step explanation: