A man has 6 friends .how many ways can b...

A man has 6 friends .how many ways can be invite one or more of them to a party?

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CHHAYA PUBLICATION-PERMUTATION AND COMBINATION -EXERCISE 7B (Very Short Answer Type Questions )

Explain the concept of permutation and combination.
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Find the value of n in each of the following cases : if .^(n)C(n-2)...
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Find the value of n in each of the following cases : if .^(n)C(n-4...
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Find the value of n in each of the following cases : if .^(2n)C(4):...
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Find the value of n in each of the following cases : if .^(n)C(5)=^...
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Find the value of n in each of the following cases : if .^(20)C(3n)=...
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If .^(n)C(7)=^(n)C(11) , show that .^(21)C(n)=1330.
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If .^(n)P(r)=120xx.^(n)C(n-r), find the valueof r.
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If .^(2n)C(r)=.^(2n)C(r+2) find the value of r.
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If .^(n)C(4)=21xx.^(n/2)C(3) , find the value of n.
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How many different triangles can be formed by joining the angular poin...
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n points are in space ,no three of which are collinear .if the number...
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Out of 9 Swarajists and 5 Ministrialists , how many different committe...
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In how many different ways cann a committee of 5 boys and 3 girls can...
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In how many ways can 3 mangoes be selected from 10 mangoes so as to a...
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A man has 6 friends .how many ways can be invite one or more of them t...
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In how many ways can a person contribute to a charitable fund out of 1...
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How many different factors can 2310 have ?
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At a certain examination , there are 8 papers . In order to pass the ...
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The Indian Cricket XI is to play 5 test matches against M.C.C Cricket...
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