Answer:
Not clear enough
Step-by-step explanation:
please resend the question and make it more clear and readable
Hi
Answer:
3bc
Step-by-step explanation:
3×b=3b
3b×c=3bc
By definition, if
is the least upper bound of the set
, it means two thing:
In other words, the least upper bound of a set is greater than or equal to every single element of the set, but it is "close enough" to the elements of the set, because you guaranteed to find elements in the set between
and 
For example, pick
. Obvisouly, the least upper bound is
. In fact, every number in
is smaller than 10, but as soon as you take away something from 10, say 0.01, you get 9.99, and there are elements in
greater than 9.99, say 9.9999.
So, the claim is basically proven by definition: if
, let
. By definition, there exists
.
Check the picture below
notice, the "a" side goes from -2 to 11
and the "b" side goes from 2 down to -4
i would say the answer is 5/8
because c is 3/4