If\[x=7+4\sqrt{3}\]and\[xy=1\], what is the value of\[\frac{1}{{{x}^{2}}}+\frac{1}{{{y}^{2}}}\]?

If\[x=7+4\sqrt{3}\]and\[xy=1\], what is the value of\[\frac{1}{{{x}^{2

1.	If\[x=7+4\sqrt{3}\]and\[xy=1\], what is the value of\[\frac{1}{{{x}^{2}}}+\frac{1}{{{y}^{2}}}\]?
A.	\[64\]
B.	\[134\]
C.	\[194\]
D.	\[1/49\]
Answer» D. \[1/49\]

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If\[x=7+4\sqrt{3}\]and\[xy=1\], what is the value of\[\frac{1}{{{x}^{2}}}+\frac{1}{{{y}^{2}}}\]?

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