Prove that the logistic regression curve (5.1) has the steepest slope where 7 (x) = Generalize to model (5.8). }.

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A: According to our guidelines we can answer only one question and rest can be reposted. 

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Q: 20. Solve the difference equation y, +Yn-1 = Un +÷Un-1, where un is unit step sequence.

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