When S1⊆ S, where S contains at least one element not in S1, S1 is called a —– of S.

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Question:

When S1⊆ S, where S contains at least one element not in S1, S1 is called a —– of S.

A.

power of the set

B.

proper subset

C.

equivalent set

D.

unit set

Answer» b. proper subset

Note: The above multiple-choice question is for all general and Competitive Exams in India.