Question

If (x-1/x)=4, then find x^4+(1/x^4).

Answer 1

Answer:

hi I donot no the answer

Answer 2

Answer:

x=0.28

Step-by-step explanation:

x-1/x=4

take the x down there in the RHS

So,x-1=4x

On taking x to RHS

-1=4x-x

So,-1=3x

x=-1/3

If x=-1/3 then

putting the value of x in the second equation

so, -1/3^4+(1/-1/3+4)

1/81+(3/11)

take LCM if 81 and 11(891)

11+243/891

254/891

0.28