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What is the value of (\sqrt{5}\times\sqrt{20})?
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Answer and explanation
Correct answer: (10)
Step 1: (\sqrt{5}\times\sqrt{20}=\sqrt{100}). Step 2: (\sqrt{100}=10), which is rational. Step 3: In multiplication, first multiply the numbers inside the roots.
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What is the correct answer to this question?
(10)
Why is this the correct answer?
Step 1: (\sqrt{5}\times\sqrt{20}=\sqrt{100}). Step 2: (\sqrt{100}=10), which is rational. Step 3: In multiplication, first multiply the numbers inside the roots.
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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