Mathematics
The number of proper subsets of the set {α, β, Φ, θ, η} is
- 24
- 25
- 31
- 32
Sets
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Answer
The number of proper subsets for a set with n elements is 2n-1.
Here, n=5,
so 25-1 = 24 = 32 - 1 = 31
Hence, option 3 is the correct option.
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