Question

The number (√3 +√5 ) (√3 -√5 ) is
a)a rational number
b)an irrational number
c)not an integer
d)None of these

Answer 1

(A)A rational Number

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Answer 2

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PRODUCT OF EQUATION

$\: \: \: \: ⟹( \sqrt{3} + \sqrt{5} )( \sqrt{3} - \sqrt{5} ) \\ = - 2$

⟹ (-2) is a Rational number

☞ (So answer is option A)

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