Determine the number of ways to choose 5 numbers from the first 18 positive integers such that any 2 differ by at least 2.

2 years ago

Share

Answers : (1)

                                        

Hi,


Please mail the question with singly title, so that itn will be visibkle to everyone


Regards

2 years ago

Post Your Answer

More Questions On Algebra

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
Find the number of integral points that lie exactly in the interior of the triangle with vertices (0,0) ,(0,21) ,(21,0) .
 
 
Hello student, Please find the answer to your question below The equation of the line joining (0, 21) and (21, 0) is x+y = 21 or y = -x+21. Thus 19, 18, ..., 0 integral points lying inside...
  img
SHAIK AASIF AHAMED one month ago
The solution set of |x +1/x| + |x +1| = (x+1)^2 /|x|
 
 
Hello Student, Thanks & Regards Arun Kumar Btech, IIT Delhi Askiitians Faculty
  img
Arun Kumar 2 months ago
1)If all the roots (zeros) of the polynomial f(x)=x^5+ax^4+bx^3+cx^2+dx-420 are integers larger than 1, then f(4)=? 2)Consider the two functions f(x) =x^2+2bx+1 and g(x)=2a(x+b), where the...
 
 
Hello student, Please find the answer to your question below f must have 5 (not necessarily distinct) roots d1, d2, . . . d5. f factors as (x – d1)(x – d2)(x – d3)(x...
  img
SHAIK AASIF AHAMED one month ago
prove that the the perpediculars drawn from the vertices of a triangle on the sides facing them are concurrent.
 
 
Hello Student, Please find the proof of this: Let us draw (construct) the straight line GH passing through thepoint C parallel to the triangle side AB. Such a line does exist due to...
  img
Nishant Vora 4 days ago
evaluate the following integral ∫ 1 / sqrt(x) (sqrt(x) + 1) dx
 
 
Ans: Hello student, Please find the answer to your question below
  img
Jitender Singh 18 days ago
What will be the anti derivative of e 3x ? Is there any method other than substitution to solve it?
 
 
Anti derivative of e 3x = ∫ e 3x dx = e 3x /3 + c I think substitution is the simplest way(substitute 3x for t) or just do it directly
 
Harikrishnan M B 2 months ago
View all Questions »