Question

Q3. If m/n + n/m = -1, then
value of m3 - n3 is.*​

Answer 1

Answer:

m/n+n/m= -1

(m^2+n^2)/mn= -1

m^2+n^2= -mn

m^2+n^2+mn=0

so m^3-n^3

=(m-n)(m^2+n^2+mn)

=(m-n).0

=0