What is the value of (\sqrt{6}\times\sqrt{54})?
Answer and explanation
Correct answer: (18)
Step 1: (\sqrt{6}\times\sqrt{54}=\sqrt{324}). Step 2: (\sqrt{324}=18), so the result is rational. Step 3: After multiplication, check whether the inside number has become a perfect square.
Frequently asked questions
What is the correct answer to this question?
(18)
Why is this the correct answer?
Step 1: (\sqrt{6}\times\sqrt{54}=\sqrt{324}). Step 2: (\sqrt{324}=18), so the result is rational. Step 3: After multiplication, check whether the inside number has become a perfect square.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Irrational numbers.