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Question

Number of proper subsets of a set A given by A={x:x27x+120 and xZ} is

A={x:x27x+120 तथा xZ} द्वारा दिये गये समुच्चय A के उचित उपसमुच्चयों की संख्या है

A
3
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B
8
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C
4
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D
Infinite

अनन्त
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