1yes [1] thanks bhaiya
n=3 , m=6
bhaiya one Q
in BINARY operations it says like
n(AxB)
ELEments are 2n2
can u show how ?
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
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4 Answers
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106Q1. 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