Question

x^100+1/x^100 =30 then x^100-x^100=?​

Answer 1

Step-by-step explanation:

let x^100=t

We can write equation as,

t+1/t=30

t^2-30t+1=0

t= [30±√(900-4)] / 2

t=15±√224

x^100 = 15±√224

1/x^100= it's conjugate which is 15-+√224

Now just subtract it. It will come more than one value.

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