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Ans :The formula for permutation is
nPr =(n!)/(n−r)!
The formula for combination is
nCr = (nr) =(nPr)/r!
Write the formulas for permutation and combination?
Ans :The formula for permutation is
nPr =(n!)/(n−r)!
The formula for combination is
nCr = (nr) =(nPr)/r!
