For an integer n>4, let Sn be the set of all binary strings of length n. The relation R on Sn is defined as the set containing all ordered pairs of binary strings (s, t) such that the first 2 bits of s agree with the first 2 bits of t. Indicate the correct statement. OR is an equivalence relation that partitions S₂ into 4 equivalence classes, each of them of cardinality 22-2 OR is an equivalence relation that partitions S₂ into 2"-2 equivalence classes, each of them of cardinality 4. OR is an equivalence relation that partitions S₂ into 22-4 equivalence classes, each of them of cardinality 16. OR is an equivalence relation that partitions S₂ into 16 equivalence classes, each of them of cardinality 22-4. O None of these.
For an integer n>4, let Sn be the set of all binary strings of length n. The relation R on Sn is defined as the set containing all ordered pairs of binary strings (s, t) such that the first 2 bits of s agree with the first 2 bits of t. Indicate the correct statement. OR is an equivalence relation that partitions S₂ into 4 equivalence classes, each of them of cardinality 22-2 OR is an equivalence relation that partitions S₂ into 2"-2 equivalence classes, each of them of cardinality 4. OR is an equivalence relation that partitions S₂ into 22-4 equivalence classes, each of them of cardinality 16. OR is an equivalence relation that partitions S₂ into 16 equivalence classes, each of them of cardinality 22-4. O None of these.
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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Transcribed Image Text:For an integer n>4, let S, be the set of all binary strings of length n. The relation R on Sn is defined as the set containing all ordered pairs of binary strings
(s, t) such that the first 2 bits of s agree with the first 2 bits of t. Indicate the correct statement.
OR is an equivalence relation that partitions S into 4 equivalence classes, each of them of cardinality 2¹-2
OR is an equivalence relation that partitions S₂ into 2-2 equivalence classes, each of them of cardinality 4.
OR is an equivalence relation that partitions S₂ into 22-4 equivalence classes, each of them of cardinality 16.
OR is an equivalence relation that partitions S₂ into 16 equivalence classes, each of them of cardinality 22-4.
O None of these.
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