The number 2-32-3 is a-an

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Standard VIII

Mathematics

Closure Property of Rational Numbers

The number 2+...

Question

The number $(2 + \sqrt{3}) (2 - \sqrt{3})$ is a/an

Irrational Number

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Rational Number

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Natural Number

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Odd Number

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Solution

The correct options are
B
Rational Number

C
Natural Number

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

$(2 + \sqrt{3}) (2 - \sqrt{3}) = 2^{2} - {\sqrt{3}}^{2} = 4 - 3 = 1$

$1$ is a natural rational number which is neither even nor odd.

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The number (2+√3)(2−√3) is a/an

The correct options are B Rational Number C Natural Number Using the formula (a+b)(a−b)=a2−b2 (2+√3)(2−√3)=22−√32=4−3=1 1 is a natural rational number which is neither even nor odd.

The number $(2 + \sqrt{3}) (2 - \sqrt{3})$ is a/an

The correct options are
B
Rational Number

C
Natural Number

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

$(2 + \sqrt{3}) (2 - \sqrt{3}) = 2^{2} - {\sqrt{3}}^{2} = 4 - 3 = 1$

$1$ is a natural rational number which is neither even nor odd.