Advertisements
Advertisements
प्रश्न
If n is a positive integer, then the number of terms in the expansion of (x + a)n is:
पर्याय
n
n + 1
n - 1
2n
उत्तर
n + 1
APPEARS IN
संबंधित प्रश्न
Evaluate 8!
Evaluate `(n!)/((n-r)!)`, when n = 9, r = 5
In how many of the distinct permutations of the letters in MISSISSIPPI do the four I’s not come together?
Find x in each of the following:
How many three digit numbers can be formed by using the digits 0, 1, 3, 5, 7 while each digit may be repeated any number of times?
The number of ways in which the letters of the word ARTICLE can be arranged so that even places are always occupied by consonants is
The total number of 9 digit number which has all different digit is:
If the letters of the word GARDEN are permuted in all possible ways and the strings thus formed are arranged in the dictionary order, then find the ranks of the words
DANGER
Three married couples are to be seated in a row having six seats in a cinema hall. If spouses are to be seated next to each other, in how many ways can they be seated? Find also the number of ways of their seating if all the ladies sit together.
Using the digits 1, 2, 3, 4, 5, 6, 7, a number of 4 different digits is formed. Find
| C1 | C2 |
| (a) How many numbers are formed? | (i) 840 |
| (b) How many number are exactly divisible by 2? | (i) 200 |
| (c) How many numbers are exactly divisible by 25? | (iii) 360 |
| (d) How many of these are exactly divisible by 4? | (iv) 40 |
