A set P has 20 elements . The no. of subsets of P containing odd no. of elements is _ a. 2^(18) + 20 b. 2^(20) -128 c.2^(19) d.2^(19) -1

muskan

• Muskan
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• 2^(n-1)-1 formula

  • Dhisale
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  0

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• -1

  • Korke
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  -1

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• 20c1+20c3+20c5.......20c19=2^19

  • Tim
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  3

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• c

  • Mythri
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  -1

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• b

  • Aavampreet
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  -2

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• 2^(19)

  • Devansh
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  -1

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• its a wrong question the answer is 10

  • Suraj
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  -3

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