if x^2+y^2 +z^2=15 xy+yz+zx=33 then find the value of x+y+z
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as (x+y+z)²=x²+y²+z²+2xy+2zx+2yz
put value of x²+y²+z²
(x+y+z)²=15+2(xy+yz+zx) (take comon 2)
(x+y+z)²=15+2*33
(x+y+z)²=81
(x+y+z)=9
plz make it brainalist
put value of x²+y²+z²
(x+y+z)²=15+2(xy+yz+zx) (take comon 2)
(x+y+z)²=15+2*33
(x+y+z)²=81
(x+y+z)=9
plz make it brainalist
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please mark brainliest
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