Question

Please solve this question with step by step explanation​

Answer 1

Answer:

Answer is in the above picture

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Answer 2

Answer:

0

Step-by-step explanation:

Given :

(a/b) + (b/a) = -1

⇒ (a² + b²)/ab = -1

⇒ (a² + b²) = -ab

⇒ a² + b² + ab = 0

We know that,

a³ - b³ = (a - b)(a² + ab + b²)

         = (a - b)(0)

       = 0

Therefore,

a³ - b³ = 0

Hope it helps!