Math, asked by studygirl1808, 16 days ago

If x2 + y2 + z2 = 28. x+y+z= 6, then xy + yz + xz is equal to

Answers

Answered by bindassubho2016

3

Answer:

4

Step-by-step explanation:

6^2-2*(xy+yz+xz)=28

xy+yz+xz=(36-28)/2

=4

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Answered by js6326742

17

Answer:

4

Step-by-step explanation:

answer in attachment.

the identity mentioned at top is ( x^2 + y^2 + z^2) = x^2+y^2+z^2+2xy+2yz+2zx

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