The value of P(n,n-1)

A player tosses a coin and score one point for every head and two points for every tail that turns up. He plays on until his score reaches or passes n. P_(n) denotes the probability of getting a score of exactly n. The value of P_(n)+(1//2)P_(n-1) is equal to

The resultant of two forces P N and 3 N is a force of 7 N. If the direction of 3 N force were reversed, the resultant would be sqrt(19) N. The value of P is (1) 5 N (2) 6 N (3) 3N (4) 4N

The value of lim_(n->oo) n^(1/n)

If P(n ,4)=20xxP(n ,2), then find the value of n

If .^(n)P_(4): .^(n)P_(5) = 1:2 , find the value of n.

If .^(n)P_(5)=20 .^(n)P_(3) , find the value of n.

Find the value of sum_(p=1)^n(sum_(m=p)^n.^nC_m.^m C_p)dot And hence, find the value of lim_(n->oo)1/(3^n)sum_(p=1)^n(sum_(m=p)^n.^n C_m.^m C_p)dot

If n P_r=^n P_(r+1) and n C_r=^n C_(r-1,) then the value of (n+r) is.

The value of n, if ""^(n)P_(5) = 20.""^(n)P_(3) , is

The value of sum_(r=1)^(n)(""^(n)P_(r))/(r!) is