The ninth term of the expansion is
If the rth term in the expansion of contains x4 , then r is equal to
3
0
-3
5
The number of ways of distributing 8 identical balls in 3 distinct boxes, so that move of the boxes is empty, is
21
38
8C3
The total number of terms in the expansion of (x+y)100 +(x-y)100 after simplification is
51
202
100
50
The total number of terms in the expansion of (x+y)100 + (x-y)100 after simplification is
, then r is
4
2
The coefficient of x-7 in the expansion of will be
How many words can be formed from the letters of the word DOGMATIC, if all the vowels remain together?
43
432
4140
4320
How many 10 digit numbers can be written by suing digits 9 and 2
10c1 + 9c2
210
10c2
10!
From 12 books, the difference between number of ways a selection of 5 books when one specified book is always excluded and one specified book is always included, is
64
118
132
330
