Question

please answer briefly.........​

Answer 1

Answer:

(I)x^2+1/x^2-2=38-2

√(x^2+1/x^2-2)=√36

x-1/x=6

(II)x^2+1/x^2=38

(x^2+1/x^2)^2=38^2

x^4+x^4+2=1444

x^4+x^4=1442

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