Question

plzz answer question ​

Answer 1

Answer: option b : 1

Step-by-step explanation:

Answer 2

x/y + y/x = -1

x²+y² / xy = -1

x²+y² = -xy

x²+y²+xy = 0

x³-y³ = (x-y)(x²+xy+y²) = 0