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electronics and communication engineering signals and systems
1. The function in the given figure can be written as
(A): u(t - 1) sin 2p ( t - 1) + u(t - 4) sin 2p (t - 4)
(B): u(t - 1) sin p ( t - 1) + u(t - 4) sin p (t - 4)
(C): u(t - 1) sin p ( t - 1) - u(t - 3) sin p (t - 3) + u(t - 4) sin p (t - 4)
(D): u(t - 1) sin p ( t - 1) - u(t - 3) sin p (t - 3) + u(t - 4) sin p (t - 4) - u(t - 6) sin p (t - 6)
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