Home
Class 11
MATHS
Let Pn denote the number of permutation...

Let `P_n` denote the number of permutation of n distinct things taken all at a time and `x_n=^(n+5)C_4-(143/96)((P_(n+5))/(P_(n+3)))`(where n `in N`). The possible value of n for which `x_n` is negative, can be

Promotional Banner

Similar Questions

Explore conceptually related problems

The no.of all permutation of n distinct things taken all at a time is n!

If P(n, n) denotes the number of permutations of n different things taken all at a time then P(n, n) is also identical to , where 0 le r le n

Let .^(n)P_(r) denote the number of permutations of n different things taken r at a time . Then , prove that 1+1.^(1)P_(1)+2.^(2)P_(2)+3.^(3)P_(3)+...+n.^(n)P_(n)=.^(n+1)P_(n+1) .

If ""^(2n+1)P_(n-1) : ""^(2n-1)P_(n) =3 :5 the possible value of n will be :

Find the negative terms of the sequence X_(n)=(.^(n+4)P_(4))/(P_(n+2))-(143)/(4P_(n))

Find the negative terms of the sequence X_(n)=(.^(n+4)P_(4))/(P_(n+2))-(143)/(4P_(n))

Find the negative terms of the sequence X_(n)=(.^(n+4)P_(4))/(P_(n+2))-(143)/(4P_(n))

Find the negative terms of the sequence X_(n)=(.^(n+4)P_(4))/(P_(n+2))-(143)/(4P_(n))