1 peruutations any arrans ement of a set n objects in agivers is called permntation
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: 1_Peruutations any arrans ement of a set n objects in agivers is called permntation of the obseative (taken all ab time , donb repeat dement P( n,r )=n1/(n-r)! P( n,r )= number of permmtations , n= objects R= taken at time . Example :

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: 1_Peruutations any arrans ement of a set n objects in agivers is called permntation

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1 peruutations any arrans ement of a set n objects in agivers is called permntation

:1_Peruutations

any arransement of a set n objects in

agivers is called permntation

of the obseative

(taken all ab time ,donb repeat dement

P(n,r)=n1/(n-r)!

P(n,r)= number of permmtations ,

n= objects

R= taken at time


1 peruutations any arrans ement of a set n objects in agivers is called permntation

Example:

How many different ways to select 4 different players from 10 players on ateam to play fonr tennis mataches(data repeat plyer)

Solution :


1 peruutations any arrans ement of a set n objects in agivers is called permntation

2_combinations:

n-combination elements of a set is an unordered selction of relements from the set thes ,an n-_combinations is simply asub set of the set with relement

C(n,r)=n!/r!(n-r)!


1 peruutations any arrans ement of a set n objects in agivers is called permntation

Example::

How many ways are there to select s player from 10 members tennis team to mekeatrip to match at amother school?

Solution :


1 peruutations any arrans ement of a set n objects in agivers is called permntation

Example::

If n=11 ,r=6 , fine the follow

1-Peruutations

2-combination

:Solution


1 peruutations any arrans ement of a set n objects in agivers is called permntation

  • عمل الطالبات:

    سارهعبدالله..

    تهاني محمد..

    بشايرناصر..

    منال محمد ..

    هيفاء محمد..


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