Question

plz answer this question plz

Answer 1

$\bold{Answer :}$

Given that,

x/y + y/x = - 1

⇨ (x² + y²)/(xy) = - 1 [ xy ≠ 0 ]

⇨ x² + y² = - xy

⇨ x² + xy + y² = 0

∴ x³ - y³

= (x - y) (x² + xy + y²)

= (x - y) ( 0 )

= 0

#$\bold{MarkAsBrainliest}$