Question

if x+1/x=121 then find x^99-1/x^99=?

Answer 1

Here x^99-1/x^99=?

ans:x^99-1=x^98;

x^98/x^99=?. Here it is in the form of (x^m/x^n)=x^m-n. Formula.So the answer is x^98/x^99=x^98-99=x^-1 or 1/x.