Question

if x= 2root 2 then find the value (x+1/x)⁴​

Answer 1

$ans = 4 \\ if \: you \: replace \: x \: with \: square \: root \: of \: 2 \: it \: will \: = 2$

Answer 2

given

x=2√2

so we can write

1/x=1/2√2

Now

➡x+1/x=2√2+1/2√2

➡x+1/x=9/2√2

➡(x+1/x)⁴=(9/2√2)⁴

➡(x+1/x)⁴=6561/64