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Suppose F: R → Z Where F(x) = 82x f−1f ^ { - 1 }

Question 63

Short Answer

Suppose f: R → Z where f(x) = 82x − 19.
(a) If A = {x | 1 ≤ x ≤ 4} , find f(A).
(b) If B={3,4,5,6,7} , find f(B)
(c) If C={-9,-8} , find f−1f ^ { - 1 } (C)
(d) If D={0.4,0.5,0.6} , find f−1f ^ { - 1 } (D)

Correct Answer:

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(a) {1,2,3,4,5,6,7} .
(b) {5,...

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