If a/b + b/a = -1, then the value of a³ - b³ is?
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Step-by-step explanation:
a + b) = 6
On cubing both sides,
(a +b)³ = 6³
a³ + b³ + 3ab (a +b) = 216
a³ + b³ + 3ab × 6 = 216
a³ + b³ + 18ab - 216 = 0
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