Question

if a/b+b/a=-1 then a3-b3=? ​

Answer 1

sorey i cant understood question

Answer 2

Answer:

a^3-b^3=0

Step-by-step explanation:

a/b+b/a=-1

=>a^2+b^2=-ab

=>a^2+b^2+ab=0 (1)

we know that ,

a^3-b^3=(a-b)(a^2+ab+b^2)

=(a-b) × 0 ( by 1)

=0.