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Class 10MathematicsReal NumbersIrrational numbersMediumLevel 15

What is the value of (\sqrt{63}\times\sqrt{112})?

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Answer and explanation

Correct answer: (84)

Step 1: (\sqrt{63}\times\sqrt{112}=\sqrt{7056}). Step 2: (\sqrt{7056}=84), so the result is rational. Step 3: In multiplication, multiply the inside numbers and check for a perfect square.

Tags

real-numbersradical-productrational-result

Frequently asked questions

What is the correct answer to this question?

(84)

Why is this the correct answer?

Step 1: (\sqrt{63}\times\sqrt{112}=\sqrt{7056}). Step 2: (\sqrt{7056}=84), so the result is rational. Step 3: In multiplication, multiply the inside numbers and check for 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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