3 years ago

The sum of two positive numbers is 42. What is the smalles possible value of the sum of their squares?

1 answer:

3 0

Okie, it is not too hard.
Set these numbers a and b, notice a, b positive.
We have a+b=42.
You can see the next on my photo

Or you can use the formula of Cauchy

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A group of tourists went downstream a river and are supposed to return in 3 hours. How far can the tourists travel down the rive

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