Find Three Positive Numbers X, Y, and Z Whose Sum

question 45

Multiple Choice

Find three positive numbers x, y, and z whose sum is 21 and the sum of the squares is a minimum.

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Definitions:

Late Blight

A serious disease of potatoes and tomatoes caused by the oomycete Phytophthora infestans, leading to significant crop loss.

Phytophthora

A genus of plant-damaging oomycetes, commonly referred to as water molds, responsible for a range of plant diseases.

Axopods

Long, thin extensions of certain protozoans, such as those in the phylum Actinopoda, used for feeding and movement.

Test

A shell.