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2861
logic question
what is the missing no in following series 500,1800,100, _ , 20,50,4 explain with logic
what is the missing no in following series500,1800,100, _ , 20,50,4 explain with logic
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1 answer
2862
Doubt
Can someone show the derivation of number of one-one functions(f: A->B) is nPm where |A|=m and |B|=n?
Can someone show the derivation of number of one-one functions(f: A->B) is nPm where |A|=m and |B|=n?
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1 votes
1 answer
2863
Discrete maths approach
Can you please guide me how to approach discrete maths? I want prepare it alongside with what's being taught at classroom coaching, please suggest resources and strategy
Can you please guide me how to approach discrete maths? I want prepare it alongside with what's being taught at classroom coaching, please suggest resources and strategy
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1 votes
2 answers
2865
self doubt
if R1and R2 are two antisymmetric relations on a set then R1 - R2 and R1 intersection R2 are also antisymmetrical?
if R1and R2 are two antisymmetric relations on a set then R1 - R2 and R1 intersection R2 are also antisymmetrical?
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2866
self doubt
is empty relation R={ } on en empty set A={ } is equivalence?
is empty relation R={ } on en empty set A={ } is equivalence?
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1 votes
1 answer
2867
Zeal Workbook: Graph Theory - Graph Connectivity
Prove that every graph with n vertices and k components has atleast n-k edges.
Prove that every graph with n vertices and k components has atleast n-k edges.
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4 votes
2 answers
2868
MADEEASY
Consider a set S={1000,1001,1002........,9999}. The numbers in set S having atleast one digit as 2 and atleast one digit as 5 are?
Consider a set S={1000,1001,1002........,9999}. The numbers in set S having atleast one digit as 2 and atleast one digit as 5 are?
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2870
Kenneth H. Rosen 7th edition 5.5
How many ways are there to distribute five balls into three boxes if each box must have atleast one ball in it and if the balls are labelled but the boxes are unlabelled?
How many ways are there to distribute five balls into three boxes if each box must have atleast one ball in it and if the balls are labelled but the boxes are unlabelled?...
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1 votes
2 answers
2871
Sets and relations
If A is a set of positive odd elements less than 10. Then what is the cardinality of set A?
If A is a set of positive odd elements less than 10. Then what is the cardinality of set A?
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2872
Does all the sets are counted here ??
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1 votes
1 answer
2873
Permutations
The number of permutations of ‘n’ different things taken not more than ‘r’ at a time, with repetitions being allowed, is (a) (nr – 1)/ (n – 1) (b) (nr – 1) / (n – 1)! (c) n(nr – 1)/ (n – 1) (d) (nr – 1) / n!
The number of permutations of ‘n’ different things taken not more than ‘r’ at a time, withrepetitions being allowed, is(a) (nr – 1)/ (n – 1) (b) (nr –...
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2877
How it is possible?
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