Question

please solve this question as soon as possible

Answer 1

f(x) = ax^3 + bx^2 + cx + d
So,
alpha*beta + beta*gamma + alpha*gamma = c/a

And,
alpha*beta*gamma = -d/a

Therefore,

1/alpha + 1/beta + 1/gamma
= alpha*beta + beta*gamma + alpha*gamma / alpha*beta*gamma
= c/a / -d/a
= c / -d

Therefore

1/alpha + 1/beta + 1/gamma
= c/-d
= - c/d

Hope this helps you !!

Answer 2

I hope it will help you..