Question

Find two positive real numbers whose product is a maximum.
The sum is A.

Answer 1

please help

Answer 2

I would like to help, but I honestly don't understand the problem, what subject in mathematics are you studying.

Answer 3

x is one number
A-x is the other

Look at the product of these two numbers-
and find what happens at the min/max points.

That will tell you something about the number x.

Answer 4

The product is then Ax-x^2,
then dp/dx =A-2x set this to 0 getting A-2x=0, 2x=A, x=A/2

Answer 5

Now what??

Answer 6

well if the question was provided fully,
I don't see anything else other than saying that the two numbers are:

A/2 and A/2

Answer 7

Perplexing isn't it??

Answer 8

well, that about wraps it up I guess :)

Answer 9

lol