Math, asked by imsanjana, 8 months ago

if x , y and z are three different number ,then prove that

x {}^{2}  + y {}^{2}  + z {}^{2}  - xy \:  - yz - zx \:  \:  \:  is \: always \: positiv \\
plz answer this
from the lesson expansion

Answers

Answered by arpitsingh3729
1

Answer:

It is positive because every number in the sum is positive

#Please mark this answer as brainliest :)

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