If a= $\frac{\sqrt{5}+1}{\sqrt{5}-1}$ and b = $\frac{\sqrt{5}-1}{\sqrt{5}+1}$ , the value of $\left(\frac{a^{2}+ab+b^{2}}{a^{2}-ab+b^{2}}\right)$ is

If a= $\frac{\sqrt{5}+1}{\sqrt{5}-1}$ and b = $\frac{\sqrt{5}-1}{\sqrt{5}+1}$ , the value of $\left(\frac{a^{2}+ab+b^{2}}{a^{2}-ab+b^{2}}\right)$ is
1). $\frac{3}{4}$
2). $\frac{4}{3}$
3). $\frac{3}{5}$
4). $\frac{5}{3}$

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