Question

if x=3+root8 , then find the vaue of x^2+1/x^2 ??


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Answer 1

Answer:

I WANT FRIENDS

Answer 2

Answer:

x^2+1/x^=34

Step-by-step explanation:we know that$\sqrt[8]$x=3+root8

1/x^2= 1/(3+root8)^2=1/9+6root8+8=1/17+6root8

& after rationalisation = 17-6root8

x^2=(3+root8)^2=17+6root8

therefore, 17-6root8+17+6root8=17+17=34