Question

if x=7+4
$x = 7 +4 \sqrt{3} \: and \: \: xy = 1 \: \: \: what \: is \: the \: value \: of \: \: \binom{1 \div {x}^{2} } +{1 \div {y}^{2} }$
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Answer 1

Answer:

plz take help from the google okk.....