Question 9

If $$x+\frac{1}{x}=2$$ then the value of $$x^{100}$$+$$\frac{1}{x^{100}}$$ is

Given,   $$x+\ \frac{\ 1}{x}=2$$

$$x^2+1=2x^{ }$$

$$x^2-2x+1=0$$

$$\left(x-1\right)^2=0$$

$$x=1$$

Therefore, $$x^{100}+\ \frac{\ 1}{x^{100}}=1^{100}+\ \frac{\ 1}{1^{100}}=  1 + 1 =2$$

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