Question

Please help. I need understand what it is

Answer 1

Exercise 4, I have to: match 4a with function in 1a apply to 3a,b,c,d, right?
I mean: f: S--> T
f(x) =x^2 , S ={-1,0,1} ; T = all real numbers
C1 = all x>0
C2= all x \(\leq 0\)
C1,C2 \(\subset \) T
D1={-1,1}
D2 ={0,1}
D1,D2 \(\subset S\)
verify 3a, 3b, 3c,3d
Am I right??

Answer 2

@dumbcow

Answer 3

*

Answer 4

@BSwan I don't know why I am always at "Elementary..." level , hahahaha...
When I first took linear algebra, the book title is "Elementary...."
when I took discrete, the book is also "Elementary..."
Now, this book is "Elementary classical analysis"
Wonder when I can pass this "Elementary" level.

Answer 5

haha >.>
all of them elementary ull get used to it ,
actully a joke happen to me when i was first yr student i took Elementary brobarities...
and when anyone ask me whats ur course i used to say Elementary hahaha