Question

If a/b+b/a=-1 THEN FIND THE VALUE OF a^3-b^3​

Answer 1

Answer:

hola mate.

see the attachment

hope it helps you

Answer 2

a/b + b/a = 1

=> making denominator equal

=> (a²+b²)/ab = 1

=> a²+b² = ab

we know that , a³+b³ = (a+b)(a²+b²-ab)

=> a³+b³= (a+b)(ab-ab)

(as , a²+b² = ab)

=> a³+ b³ = (a+b)(0) = 0

the answer is 0