Math, asked by kathrynzipporah, 11 days ago

x+y-z=6 and x2+y2+z=80, then find the value of xy-yz zx

Answers

Answered by mamtachaihan1911

0

Answer:

I don't know ok bye and take care

Answered by sajanantony25

0

Step-by-step explanation:

Correct option is

6

Squaring both sides

(x+y+z)

2

=x

2

+y

2

+z

2

+2(xy+yz+zx)

we can substitute given values

(x+y+z)

2

=18+(2×9)

(x+y+z)

2

=36

(x+y+z)=6

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