Question: Show that x(t) and x (t) are orthogonal for the following signals: (a) x 1 (t) = sin ( 0 t) (b) x 2 (t)

Show that x(t) and x̂ (t) are orthogonal for the following signals: 

(a) x1(t) = sin (ω0t)

(b) x2(t) = 2cos (ω0t) + sin (ω0t) cos (2 ω0t)

(c) x3(t) = A exp (jω0t)

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