Q.1→
Coefficient of a^8 b^4 c^9 d^9 in expansion
of (abc+abd+acd+bcd)^(10) =?
Q.2→
Coefficient of (1/x) in expansion of
(1+x)^n (1+(1/x))^n =?
Q.3→
If x^m occurs in expansion of
(x+(1/x^2 ))^(2n) , then its coefficient=?
In a hospital unit,there are 8 nurses
and 5 physicians. 7 of them are
female nurses and 3 of them are
male physicians.
what is the the probability of
selecting a staff who is Nurse or
Male?
plzz help
(at−h)^2 +((a/t)−k)^2 =R^( 2)
where a, h, k, R are constants.
Then find
s^2 =(t_1 −t_2 )^2 (1+(1/(t_1 ^2 t_2 ^2 )))
where t_1 , t_2 are roots of eq. at top.