Discrete Mathematics Answers

Let A={1,2,3}
a.) R is the relation < on A
b.) R is the relation >= on A
c. ) R is the relation ⊂ on Ƥ (A)

The complement of set B relative to set A is the set

(A) A\B = x:x∈Aorx∉B
(B) A\B = x:x∈Aandx∉B
(C) A/B = x:x∈Aorx∉B
(D) A/B = x:x∈Aandx∉B

The intersection of sets A and B is defined by

(A) A∪B=x:x∈Aorx∈B
(B) A∪B=x:x∈Aandx∈B
(C) A∩B=x:x∈Aorx∈B
(D) A∩B=x:x∈Aandx∈B

Find the Sum of the first 25 terms of the poulation sequence defined by Pn=37+11n

Consider the difference equation un = f(un−1) where the function f(x) is given by
f(x)= {1/5 x + 4 x<=5}
{-3x + 20 x>5 }
(a) If u0 = 5, how does the resulting sequence behave as n ! 1?
(b) If u0 < 5, how does the resulting sequence behave as n ! 1? Draw a cobweb
diagram to illustrate your answer.
(c) If u0 > 5, how does the resulting sequence behave as n ! 1? Draw a cobweb
diagram to illustrate your answer

WHAT IS COMPOUND INTEREST ?

A gym coach coach must select 11 seniors to play on football teme .if he can make his selection in 12.376 ways.how many seniors are elibible to play?

find the value(s)of in each of the following:
a)p(n,2)=90

Prove by Contradiction: there is no smallest positive rational number

How do i solve this? Prove the following: if r and s are rational numbers then, r-s is rational