Math, asked by nandlalkumar76pcj7v3, 1 year ago

if x+y+z=15,xy+yz+zx=71 and xyz=10 find that x cube+y cube+z cube=?

Answers

Answered by rohitkunvar

210
Now plzz mark me as brainliest

nandlalkumar76pcj7v3: please solve in detail

rohitkunvar: 15^2 = x^2..... + 2*71

rohitkunvar: 225 = x^2..... + 142

rohitkunvar: so x^2 + y^2 + z^2 = 225 - 142 = 83

rohitkunvar: put all the values in the first formula

rohitkunvar: 15*(83-71) = 15*12 = 180

rohitkunvar: x^3 + y^3 + z^3 = 180+ 3xyz = 180+3*10 = 180+30 = 210

rohitkunvar: now plzz mark me as brainliest

rohitkunvar: plzz Bro I hv given my precious time for u

nandlalkumar76pcj7v3: thanks

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