Question

Of x-1/x=5 find the value of x⁴+1/x⁴​

Answer 1

Step-by-step explanation:

by squaring

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

(5)^2 =

25 +2 =x^2+1/x^2

27 (let this 1)

by again squaring

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

729-2

727 =x^4+1/x^4