Question

if x /Y + y / x is equal to -1 and x, y is not equal to zero then what is the value of x cube minus Y cube ​

Answer 1

Step-by-step explanation:

x/y + y/x = -1

(x² + y²)/xy = -1

x² + y² = -xy

x² + y² + xy = 0 -------(1)

Now ,

x³ - y³

(x - y) (x² + xy + y²)

from equation (1)

(x - y) × 0

= 0