Suggested: if x+y+z=1 xy+yz+zx=-1 and xyz=-1 find the value of x3+y3+z3 - if a b c are in gp and a^1/x=b^1/y=x^1/x prove that x y z are in ap - if x+y+z=1 xy+yz+zx= 1 and xyz= 1 find Browse related:
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