Question

The value of (2+√3)(2-√3) is​

Answer 1

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$(2 + \sqrt{3} )(2 - \sqrt{3} ) \\ {a}^{2} - {b}^{2} = (a - b)(a + b) \\ values \: here ... \\ a = 2 \\ b = \sqrt{3} \\ {(2)}^{2} - {( \sqrt{3} )}^{2} = (2 - \sqrt{3} )(2 + \sqrt{ 3} ) \\ {(2)}^{2} - { (\sqrt{3} )}^{2} \\ 4 - 3 \\ > > > > > > > > > >1 < < < < < < < < < <$

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Answer 2

Answer:

using identity

(a+b)(a-b)=a²-b²

(2+√3)(2-√3)=(2)²-(√3)²

=4-3

=1 answer