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Subjects
Class 10MathematicsReal NumbersIrrational numbersMediumLevel 15

Which result is irrational?

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Answer and explanation

Correct answer: (\sqrt{3}\times\sqrt{10})

Step 1: First multiply the numbers inside the roots. Step 2: The first three give (400), (900), and (784), which are perfect squares; the fourth gives (\sqrt{30}). Step 3: After multiplication, check whether the resulting number is a perfect square.

Tags

real-numbersradical-productirrational-result

Frequently asked questions

What is the correct answer to this question?

(\sqrt{3}\times\sqrt{10})

Why is this the correct answer?

Step 1: First multiply the numbers inside the roots. Step 2: The first three give (400), (900), and (784), which are perfect squares; the fourth gives (\sqrt{30}). Step 3: After multiplication, check whether the resulting number is a perfect square.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Irrational numbers.

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