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vesna_86 [32]
3 years ago
12

1. Select all irrational numbers.

Mathematics
2 answers:
castortr0y [4]3 years ago
7 0

Answer: (1)\sqrt{10}, \sqrt{27}, \sqrt{99}, (2) \sqrt{14}, \sqrt{24}, \sqrt{34}, \sqrt{44}, \sqrt{54}, (3) \sqrt{0.33} are irrational numbers.

Explanation:

(1)

A number is called an irrational number if it can not be written as a simple fraction form. For example \sqrt{2}, \sqrt{3},\sqrt{5},....

If a real number is multiplied by an irrational number then the result is an irrational number.

\sqrt{49}=7

\sqrt{64}=8

Since the result of these square roots are a rational number, therefore \sqrt{49},  \sqrt{64} these are rational numbers and \sqrt{10}, \sqrt{27}, \sqrt{99} are irrational numbers.

(2)

\sqrt{14} =\sqrt{7} \sqrt{2}

\sqrt{24} =2\sqrt{6}

\sqrt{14} =\sqrt{17} \sqrt{2}

\sqrt{44} =2\sqrt{11}

\sqrt{54} =3\sqrt{6}

All the number in the option can not be written in the form of simple fraction, so all the options represents the irrational numbers.

(3)

0.25=\frac{1}{4}

\sqrt{0.25} =0.5=\frac{1}{2}

\sqrt{0.33} =\frac{\sqrt{33}}{10}

Therefore, the number \sqrt{0.33} is an irrational number. The numbers 0.5,\sqrt{0.25} are rational numbers.

amid [387]3 years ago
6 0
14√

24√ - Irrational 

34√ - Irrational 

44√ - Irrational 

54√ - Irrational 
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