Question

find the value of x²+1/x² and x⁴+1/x⁴ when x-1/x=2​

Answer 1

Answer:

x^2+1/x^2=6&x^4+1/x^4

Step-by-step explanation:

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

x^2+1/x^2-2*x*1/x=4

x^2+1/x^2=6

2.) (x^2+1/x^2)^2=6^2

x^4+1/x^4+2*x^2*1/x^2=36

x^4+1/x^4=34

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