Homework Statement
Let z1(t) be the signal x(t) delayed by 4 sconds and then sped up by a factr of 3. Let
z2(t) be the signal x(t) sped up by a factr of 3 and then delayed by 4 sconds. Do z1(t)
and z2(t) represent the same signal?
Homework Equations
The Attempt at a Solution...