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I am trying to get the answer from some of my questions:

what property of DFT[ax1(n)+bx2(n)] in linearity?

what Fourier transform gives us for an a periodic signal?

what is The magnitude and phase angle?
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closed as unclear what you're asking by MBaz, lennon310, Laurent Duval, hotpaw2, jojek Apr 3 '17 at 20:32

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

locked by jojek Apr 4 '17 at 7:37

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