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Genie_math
Questions (5)
Let 1 <= k <= p−1, where p is prime. Show that p choose k is a multiple of p. What if p is not prime?
I think here when we
0 answers
431 views
Find the coefi�cient of x^18 y^32 z^25 in (x + y + z)^75? How many monomials appear in the expansion of (x + y + z)^75?
0 answers
333 views
There are eighteen guard posts. How many ways can 25 not indistinguishable (That is, they are distinguishable.)guards be
1 answer
439 views
I need to find the coefficient of x^18 y^32 in (x+y)^50.
I understand that we have to use the binomial theorem. I know how to
2 answers
415 views
Total ten pair of gloves are there. If I choose five gloves at random then whats the probability that there is at least one
3 answers
989 views
Answers (4)
Ohk so it will be - 1st glove - 20 2nd glove - 18/19 3rd glove - 17/18 4th glove - 16/17 5th glove - 15/16 Total probability = 1 - the probability of above things right ??
How many monomials appear in the expansion of (x + y + z)^75?
I couldnot find the Q i posted that's why ... i replied there with some queries. Thank You for replying
Wouldnt it be from 20 gloves as we have 10 pairs. So for first glove we can pick any. [19 remaining] For second glove we have to select from 18 which are different - 18/19 3rd glove - 16/18 4th glove - 14/17 5th glove - 12/16 ...
