Let A={8,9,10}, B={9,10,11,12,15} and C={9,10}. Which of the following statements are true? a) 5 ⊆ A b) C ⊆ B c) φ ∈ A

C++ Programming: From Problem Analysis to Program Design
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ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter15: Recursion
Section: Chapter Questions
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Let A={8,9,10}, B={9,10,11,12,15} and C={9,10}. Which of the following statements are true?

a) 5 ⊆ A

b) C ⊆ B

c) φ ∈ A 

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