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Class 11 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsWhat is the value of (\sum_{r=0}^{4}{}^{7}C_{r},{}^{5}C_{4-r})?Class 11Permutations and CombinationsCombinationsExpert MathematicsA committee of 5 members is to be formed from 8 men and 6 women, with at least 3 women. Which expression represents the number of such committees?Class 11Permutations and CombinationsCombinationsExpert MathematicsWhat is the value of (^{13}C_{6}+^{13}C_{7})?Class 11Permutations and CombinationsCombinationsExpert MathematicsIf (^{16}C_{r}=^{16}C_{2r+4}), what is the value of (r)?Class 11Permutations and CombinationsCombinationsExpert MathematicsIf (^{n}C_{2}=105), what is the value of (^{n}C_{3})?Class 11Permutations and CombinationsCombinationsExpert MathematicsIf (^{n}C_{r}=^{n}C_{r+1}), what is the relation between (n) and (r)?Class 11Permutations and CombinationsCombinationsExpert MathematicsThe simplified value of C(15,7) + C(15,8) is equal to what?Class 11Permutations and CombinationsCombinationsMedium MathematicsIf (^{n}C_{2}+^{n}C_{3}=^{n+1}C_{3}), this identity is based on which rule?Class 11Permutations and CombinationsCombinationsExpert MathematicsFor \(0\le r\le n\), which of the following identities represents the symmetry property of combinations?Class 11Permutations and CombinationsCombinationsExpert MathematicsIf (^{n}C_{r}=^{n}C_{r-2}) and (r>2), then (n) is equal to what?Class 11Permutations and CombinationsCombinationsExpert MathematicsA cricket squad has (7) batters and (6) bowlers. A group of (6) players is to be chosen with at least (2) bowlers. How many ways are possible?Class 11Permutations and CombinationsCombinationsExpert MathematicsIf (^{n}C_{2}=66), what is the value of (^{n}C_{4})?Class 11Permutations and CombinationsCombinationsExpert MathematicsIf (^{12}C_{r}=^{12}C_{r+4}), what is the value of (r)?Class 11Permutations and CombinationsCombinationsExpert MathematicsIf (^{n}C_{4}=^{n}C_{6}), what is the value of (n)?Class 11Permutations and CombinationsCombinationsExpert MathematicsWhat is the value of (\binom{15}{7}-\binom{14}{7})?Class 11Permutations and CombinationsCombinationsHard MathematicsA set of n objects contains two particular objects. Which expression gives the number of ways to select r objects such that exactly one of the two particular objects is included?Class 11Permutations and CombinationsCombinationsHard MathematicsIf (\binom{n}{7}=\binom{n}{11}), what will be the value of (n)?Class 11Permutations and CombinationsCombinationsHard MathematicsFrom (12) men and (10) women a committee of (7) persons is to be formed with exactly (4) men. How many ways are there?Class 11Permutations and CombinationsCombinationsHard MathematicsFrom (9) red and (8) blue balls (6) balls are to be selected with exactly (3) red balls. How many ways are there?Class 11Permutations and CombinationsCombinationsHard MathematicsWhat is the value of (\binom{14}{7}-\binom{13}{7})?Class 11Permutations and CombinationsCombinationsHard