1. Write a formula for the function f: N→ Z defined by the recursive formulanf(n-1) +1f(n)n-1when the base of the recursion is(i) f(1) = 1;(ii) f(1) = 2;(iii) f(1) = -1.2. Identify the sets X CZ defined by the following recursive definitions.(a) 0 € X, 1 € X, x, y ≤X →x · y € X.(b) 0 € X, 1 X, x, y ≤X →x+y € X.

As you post multiple questions according to guidelines I only solve the first question please post…

Answered: 1. Write a formula for the function f:…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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1. Write a formula for the function f: N→ Z defined by the recursive formula f(n) = nf(n-1) +1 n-1 when the base of the recursion is (i) f(1) = 1; (ii) f(1) = 2; (iii) f(1) = -1.