Write short note on permutation and combination
Answers
Answered by
1
The number of permutation of 'n' different objects taken 'r' at a time , where zero is less then r greater or equal then zero and the objects do not repeat is n(n-1)(n-2)......(n-r+1), which is denoted by nPr
combination is a selection of objects or people taken some or all at a time . (order is not important). n objects taken'r' at a time is given by nCr .clearly ifo is greater then or equal to 0 or less then n or equal to n
combination is a selection of objects or people taken some or all at a time . (order is not important). n objects taken'r' at a time is given by nCr .clearly ifo is greater then or equal to 0 or less then n or equal to n
Answered by
49
The number of permutation of 'n' different objects taken 'r' at a time , where zero is less then r greater or equal then zero and the objects do not repeat is n(n-1)(n-2)
(n-r+1), which is denoted by nPr
combination is a selection of objects or people taken some or all at a time . (order is not important). n objects taken'r' at a time is given by nCr .clearly ifo is greater then or equal to 0 or less then n or equal to n
Similar questions