Question

if x-1/x=2 then find the value of x^4+1/x^4​

Answer 1

Step-by-step explanation:

x-1/x=2

(x-1/x) ^2=2^2

x^2-2+(1/x^2)=4

x^2+1/x^2=6

squaring on both sides

(x^2+1/x^2=6)^2

x^4+2+(1/x^4)=36

x^4+1/x^4=34