MATHS SET

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Two finite sets have m and n elements respectively. The total number of subsets of first set is 56 more than the total number of subsets of the second set. the values of m and n respectively are_____________ ?

show me the solution please

#Mathematics #Fundamentals

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4 Answers

Lokesh Verma ·2009-04-22 01:47:27

2^m-2ⁿ=56

2ⁿ(2^m-n-1)=8.7

now you can solve it?

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playpower94 ·2009-04-22 01:50:15

yes [1] thanks bhaiya
n=3 , m=6

bhaiya one Q

in BINARY operations it says like
n(AxB)
ELEments are 2^n²
can u show how ?

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playpower94 ·2009-04-25 04:23:13

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106

Asish Mahapatra ·2009-04-26 01:48:26

Q1. no of elements in A = m
we have to find no. of ordered pairs (x,y,z) x,y,z belonging to A

So, the total no. of pairs = mC1*(m-1)C1*(m-2)C2*3!

which u shud get as (m³ - 3m² + 2m)*6

But if u want just selection of pairs then it wud be m³ - 3m² + 2m

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° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω

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MATHS SET

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