Given that the positive real numbers x, y, and z satisfy:

x2+xy+y2=9
y2+yz+z2=16
z2+zx+x2=25

Determine xy+yz+zx

(In reply to No Subject by Wilma Carr)

Do not post such irrelevant and idiotic comments on a math /logic website

Posted by K Sengupta on 2024-10-02 23:16:58