7.28 Simply the following expressions using phasors: (a) i(t) = 20 cos(wt - 30°) + 16 cos(wt + 15°) A (b) i2(t) = 14 sin(wt +45°) - 17 cos(wt +60°) A (c) i3 (t) = 2 cos(5t) - 7 sin(5t) A

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7.28 Simply the following expressions using phasors:
(a) i(t) = 20 cos(@t-30°) + 16 cos(wt + 15°) A
(b) i2(t) = 14 sin(wt +45°) - 17 cos(wt +60°) A
(c) i3 (t) = 2 cos(5t) - 7 sin(5t) A
Transcribed Image Text:7.28 Simply the following expressions using phasors: (a) i(t) = 20 cos(@t-30°) + 16 cos(wt + 15°) A (b) i2(t) = 14 sin(wt +45°) - 17 cos(wt +60°) A (c) i3 (t) = 2 cos(5t) - 7 sin(5t) A
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