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
Share
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
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
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