Book errata:
In chapter 4's slides, on slides 30 and 31:
x(t) = 4cos(2π 200t + 3π/4) + 3cos(2π 200t) + 5cos(2π 300t - 3π/5)
Should be:
x(t) = 4cos(2π 100t + 3π/4) + 2cos(2π 200t) + 5cos(2π 300t - 3π/5)
Page 278 (chapter 9) has:
g0 = { b, a }
g0 = { -a, b }.
This should be:
g0 = { b, a }
g1 = { -a, b }.