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#1 Re: Exercises » Sets » 2013-09-25 02:44:49

You can now check the link again ... Thank you for everything

#2 Re: Exercises » Sets » 2013-09-24 22:07:16

Please here are the screenshots of the questions, thanks a lot
https://www.dropbox.com/s/ukmeczmf8r889vb/discreteMaths.JPG

#3 Re: Exercises » Sets » 2013-09-24 03:59:05

Thanks a lot bob bundy,  bobbym I would very much appreciate if I could attach the assignment because the values and symbols get contorted if I paste it, thanks anyway, thanks gAR wow, I need more questions to practice before my exams, thanks u all, you guys are genius.

#4 Exercises » Sets » 2013-09-21 11:43:16

Obeng
Replies: 10

Can someone please solve the following questions with detailed explanations for me? we are to discuss it before being taught, thank you.

Question 1
Show by mathematical induction that for all n ≥ 1 , 1+2 +3+..+n = (n(n+1))/2

Question 2
Evaluate the sum 1^2+2^2+3^2+..+r^2 by using the generating function 1/((1-z)) =1+z+z^2+z^3+z^4+z^r+

Question 3
Let A= { a,b,c,d,e } and R be a relation on set A such that M_R is given as :
Mr 10010
01000
00011
10000
01001

Find the transitive value of r using Warshall's theory

Question 4
In finite poset S,show that there is always at least one maximal element and one minimal element.

Question 5
Solve the recurrence equation a_n-a_(n-1)-a_(-2) =2n with a_0=0 and a_1=1

Any help is deeply appreciated