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#1 Re: Help Me ! » no. of functions » 2012-06-29 15:47:36

Thanks friends I have got the definition of surjective function and into function

but How can i solve my questions.

please help

Thanks

#2 Help Me ! » no. of functions » 2012-06-27 16:38:35

juantheron
Replies: 5

If A = {1,2,3,4,5,6} and B = {a,b,c,d,e}. Then Total no. of

(1) onto function from A to B

(2) into function from A to B

(3) Constant function from A to B

Explanation Required

Thanks

#3 Help Me ! » probability » 2012-06-10 00:56:37

juantheron
Replies: 3

Suppose two houses in a thousand catch fire in a year and there are 2000 houses in a village. what is the probability that

(i) none of the houses catch fire

(ii) at least one house catch fire?please explain

#4 Help Me ! » dice probability » 2012-05-22 08:11:32

juantheron
Replies: 86

A and B alternately throw a die....The numbers they get on their throws are individually added......the first person to get a overall sum of 10 wins....what is the probability that A wins the game given that it is the first to start the game

#5 Help Me ! » another probability » 2012-05-22 08:09:54

juantheron
Replies: 0

A family has two children. Assume that birth month is independent of gender,
with boys and girls equally likely and all months equally likely, and assume that the
elder child’s characteristics are independent of the younger child’s characteristics).

What is the probability that both are girls, given that at least one is a girl who was
born in March.

#6 Re: Help Me ! » probability » 2012-05-22 08:08:44

Thanks Bobbym and anonimnystly

Yes Bobbym you are Right

but would you like to explain it to me

Thanks

#7 Re: Help Me ! » orthocenter » 2012-05-20 01:14:22

Yes John E. Franklin  you are Right

i have also get it

Thanks

#8 Help Me ! » probability » 2012-05-20 01:02:27

juantheron
Replies: 4

There are 6 couples (12 people). 4 people are selected at random. What is the probability that exactly one couple will be selected

#9 Re: Help Me ! » no. of digit » 2012-05-14 16:33:28

Thanks Bobbym how can you get it

explanation plz

#10 Help Me ! » no. of digit » 2012-05-14 15:49:21

juantheron
Replies: 3

find no. of digit in 2^2^(22)

#11 Help Me ! » perfect square » 2012-05-14 15:47:22

juantheron
Replies: 33

the number of ordered pairs of positive integers x,y such that x^2 +3y and y^2 +3x are both perfect squares

#12 Re: Help Me ! » sum of digit » 2012-05-14 15:43:10

Thanks member for heavy and Nice discussion

#14 Re: Help Me ! » no. of combination » 2012-05-04 07:16:12

Thanks anonimnystefy

How can I take generating function here

explanation required.

#16 Re: Help Me ! » no of onto function » 2012-05-04 06:54:26

yes

would you like to explain it to me

#17 Help Me ! » no of onto function » 2012-05-04 06:42:35

juantheron
Replies: 5

If a Set A consists of n- distinct elements, then total no. of onto function from A to A is

#18 Help Me ! » no. of combination » 2012-05-04 06:40:00

juantheron
Replies: 27

the number of combinations that can be made by taking 4 letters of the word COMBINATION

#19 Re: Help Me ! » sum of digit » 2012-05-04 06:30:45

Thanks friends but would you like to explain it to me

#20 Re: Help Me ! » cardanility » 2012-05-03 07:25:29

Thanks anonimnystefy

got it

#21 Re: Help Me ! » max of determinant » 2012-05-03 07:10:36

Thanks bobbym and anonimnystely

i want explanation for the line

You can get the exact opposite of a diagonal matrix for that. The main giagonal is all zeros and the rest are ones.

to bobbym

what is Hadamard's bound

Thanks

#22 Help Me ! » max of determinant » 2012-05-03 06:55:42

juantheron
Replies: 4

maximum value of 3rd order determinant whose element are choosen from the set {0,1}

#23 Re: Help Me ! » cardanility » 2012-05-03 06:54:39

Thanks anonimnystefy

would you like to explain me the meaning of cardanility

Thanks

#24 Help Me ! » sum of digit » 2012-05-03 06:51:45

juantheron
Replies: 123

The sum of all the no. that can be formed using the digit

without repetition is

#25 Help Me ! » cardanility » 2012-05-03 06:30:15

juantheron
Replies: 5

Let S={1,2,3,..........n}.If x denotes the set of all subsets of S containing exactly two elements  having 1 as least element,then what is the cardinality of X

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