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Communication Systems - Engineering

Communication Systems - Section 1
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Communication Systems - Section 24
Communication Systems - Section 25

The Hilbert transform of cos ω₁t + sin ω₂t is

A sin ω₁t + cos ω₂t

B sin ω₁t - cos ω₂t

C cos ω₁t - cos ω₂t

D - sin ω₁t + cos ω₂t

ANS:B - sin ω₁t - cos ω₂t

J[s(t)] = s(t + 90°).

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