If .^(n)C(10) = .^(n)C(15), then evaluat...

If `.^(n)C_(10) = .^(n)C_(15)`, then evaluate `.^(27)C_(n)`.

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NAGEEN PRAKASHAN-PERMUTATION AND COMBINATION -Exercise F

Evaluate: .^(20)C(5)+^(20)C(4)+^(21)C(4)+^(22)C(4)
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Find the value of n: (i) .^(n)C(10)=^(n)C(16) (ii) .^(5)C(n) =^(15)...
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If .^(n)C(10) = .^(n)C(15), then evaluate .^(27)C(n).
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If .^(18)C(r) = .^(18)C(r+1), then evaluate .^(r)C(5).
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If .^(n)C(5) = .^(n)C(7), then find .^(n)P(3)
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If .^(16)C(r) = .^(16)C(r+6), then find .^(5)C(r).
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Determine n if (i) ^2n C2:^n C2=12 :1 (ii) ^2n C3:^n C3=11 :1
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Determine n if (i) ^2n C2:^n C2=12 :1 (ii) ^2n C3:^n C3=11 :1
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Determine n if (i) ^2n C2:^n C2=12 :1 (ii) ^2n C3:^n C3=11 :1
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If .^(15)C(r): .^(15)C(r-1) = 1:5, then find r.
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If .^(n-1)P3 :^(n+1)P3 = 5 : 12, find n.
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If .^(n)P(r) = 720 and .^(n)C(r) = 120, then find r. = (5 xx 4 xx 3...
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If ^(n+1)C(r+1): ^nCr: ^(n-1)C(r-1)=11:6:2 find the values of n and r.
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If .^(n)C(4),.^(n)C(5), .^(n)C(6) are in A.P., then find the value of ...
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If alpha=\ \ ^m C2,\ then find the value of \ ^(alpha)C2dot
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In how many ways can a team of 11 players be selected from 14 players?
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In how many ways 2 persons can be selected from 4 persons?
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In how many ways can a person invites his 2 or more than 2 friends out...
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In how many ways can 11 players be selected from 14 players if (i) a...
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In how many ways can 5 subjects be chosen from 9 subjects if three sub...
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