Math, asked by sjpcoc5681, 1 month ago

If x + y + z = 9, xy + yz + zx = 26, find x² + y² + z²

Answers

Answered by vanadanapavale
0

Answer:

which grade it is sorry I don't know

Answered by kkeerthana8047
3

Answer:

(x+y+z)²=x²+y²+z²+2(xy+yz+xz)

x²+y²+z²=(x+y+z)²-2(xy+yz+zx)

given :x+y+z=9

xy+yz+xz=26

x²+y²+z²=(9)²-2(26)

x²+y²+z²=81-52

x²+y²+z²=29

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