Question

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Answer 1

Answer:

square root 5+3

Step-by-step explanation:

there should be real number in rational number and if there no real number it is irrational number

Answer 2

Answer:

option (c)

Step-by-step explanation:

$\sqrt{16} - \: 4= \sqrt{16 \: } - 4 \: \\ = 4 - 4 \\ = 0$

$(3 - \sqrt{3} )(3 + \sqrt{3} ) = \\ \\ = {3}^{2} - { \sqrt{3} }^{2} \\ \\ = 9 - 3 \\ \\ = 6$

$\sqrt{5} + 3 = \sqrt{5} + 3 \\ \\ it \: is \: a \: irrational \: number$

$- \sqrt{25 } = 5$

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