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what is the formula for number of combinations. Number should be greater than or equal to zero. Solve the equation to find the number of combinations.
Permutations And Combinations Formulae Permutations And Combinations Studying Math Combination Math from in.pinterest.com
The number of combinations selections or groups that can be formed from n different objects taken r 0 r n at a time is Let the total number of selections or groups x. C n r n. So some of the permutations would be ABC ACB BAC BCA CAB and CBA.
Each group contains r objects which can be arranged in r.
Lets consider one face. It helps to derive such combinations as shown above. Number should be greater than or equal to zero. You can do this either by hand or with a calculator.
