For the other direction I'm guessing it's:
There is an st in C such that st < inf C + e.
By definition, inf S <= s for all s and inf T <= t for all t. So (inf S)(inf T) <= st.
So we have (inf C + e) > st => (inf S)(inf T). so (inf C + e) > (inf S)(inf T). (I need this to be a => though)
I'm...
Homework Statement
Sets A and B are sets of positive real numbers. Define C = {st| s \in S and t \in T}
Prove inf(C) = inf(S)*inf(T)
The Attempt at a Solution
so I'm trying to prove inf(C) <= inf(S)*inf(T) and inf(C) >= inf(S)*inf(T).
i'll use e as epsilon. epsilon is positive...
building a circuit?? - easy high school project...sorta
Ok so my teacher just walks in one day (w/o any syllabus or assignment sheet) and tells us to build a circuit that would cause a lightbulb to flash on and off. He specified that the cicuit can't be made by buying something that was...
lol...it was really complicated, but umm someone else got 9.05 m/s and they did it in like one line. Iono thought because it was one of the last problem on that page so i don't think it can't be solved in like 1 line
I have the Giancoli text and I ran across this lvl III problem (pg 44 , #48) on the hmwk:
Suppose you adjust your garden hose nozzle for a hard stream of water. You point the nozzile vertically upwatd at a height of 1.5 m above the graound. When you quickly move the nozzle away from the...