Example Determine the power and the rms value of: (a) g(t)=C cos (wol +0) (b) g(1)=C₁ cos (a! +61) + C₂ cos(a21 +0₂) ww2 (c) g(t) = De Solution Part (a) 72 P = lim ² cos² ( (at+8) dt T/2 C² =lim [1+cos (2x+29)] dt 1- T T/2 C² T -lim dt+ lim cos (2w+20) dt 1-0 27 27 lim... C²(T) C² 2(T) 2 C rms value=