Question

If x/y + y/x = -1 ( x,y not equal to 0 ) , the value of X³ - y³ is a) 1 b) -1 c) 2 d) 0

Answer 1

Answer:

Step-by-step explanation:

x/y+y/x=-1

=x²+y²/xy=-1

=x²+y²=-1×xy

=x²+y²=-xy

=x²+y²+xy=0

x³-y³=(x-y)(x²+xy+y²) we got from equation (i) x²+xy+y²=0

=(x-y)(0)

=0

Answer 2

Answer:

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Step-by-step explanation:

ur answer is there in image