Question

$(2 + \sqrt{3} )(2 - \sqrt{3)}$
solve this
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Answer 1

$(2 + \sqrt{3} )(2 - \sqrt{3} ) \\ it \: is \: in \: the \: form \: of$

$(a + b)(a - b) = {a}^{2} - {b}^{2}$

so,

$= {2}^{2} - ({ \sqrt{3} })^{2}$

$= 4 - 3$

$= 1$

Therefore the answer is "1".