Which result is irrational?
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Answer and explanation
Correct answer: (\sqrt{5}\times\sqrt{2})
Step 1: First simplify all products. Step 2: The first three produce inside numbers (144), (36), and (81), which are perfect squares; the fourth gives (\sqrt{10}). Step 3: After multiplication, check whether the inside number is a perfect square.
Frequently asked questions
What is the correct answer to this question?
(\sqrt{5}\times\sqrt{2})
Why is this the correct answer?
Step 1: First simplify all products. Step 2: The first three produce inside numbers (144), (36), and (81), which are perfect squares; the fourth gives (\sqrt{10}). Step 3: After multiplication, check whether the inside 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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