The coefficient of `a^8b^4c^9d^9` in `(a b c+a b d+a c d+b c d)^(10)` is `10 !` b. `(10 !)/(8!4!9!9!)` c. `2520` d. none of these

Find the coefficient of a^(2)b^(3)c^(4)d in the expansion of (a-b-c+d)^(10) .

" The coefficient of "a^(4)b^(3)c^(2)d" in "(a-b+c-d)^(10)" is "k" then "(k)/(100)=

The coefficient of (x^(3)* b^(6) * C^(8) *d^(9) *e *f) in the expansion of (a + b + c - d - e - f)^(31) is

The coefficient of a^3b^6c in the expansionof (2a-b+c)^10 is (A) 6720 (B) 840 (C) 10 (D) none of these

A rational number equal to (-2)/3 is (a) (-10)/(25) (b) (10)/(-15) (c) (-9)/6 (d) None of these

How many children play badminton as well as cricket? (a) 4 (b) 6 (c) 9 (d) 10 (e) None of these

4.036 divided by 0.04 gives (a) 1.009 (b) 10.09 (c) 100.9 (d) None of these

The number of pilgrims in the group is (a) 4 (b) 6 (c) 8 (d) 10

Find the coefficient of x^2 y^3 z^4 in the expansion of (ax -by +cx)^9 (b) a^2 b^3 c^4 d in the expansion of (a -b-c +d)^10

In the expansion of (a+b+c)^10 (A) total number of terms in 66 (B) coefficient of a^8 bc is 90 (C) coefficient of a^4b^5c^3 is 0 (D) none of these