\(समुच्चय (A={x\in \mathbb{N}:x\) is a perfect cube less than 30}) क्या है?

\(What is (A={x\in \mathbb{N}:x\) is a perfect cube less than 30})?

Explanation opens after your attempt
Correct Answer

A. ({1,8,27})

Step 1

Concept

The natural cubes are \(1^3=1\), \(2^3=8\), and \(3^3=27\).

Step 2

Why this answer is correct

\(4^3=64\), which is greater than (30).

Step 3

Exam Tip

Stop the list when the next term crosses the bound. चरण 1: प्राकृतिक घन \(1^3=1\), \(2^3=8\), \(3^3=27\) हैं। चरण 2: \(4^3=64\), जो (30) से बड़ा है। चरण 3: सीमा से बाहर का अगला पद देखकर सूची रोकें।

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Mathematics Answer, Explanation and Revision Hints

\(समुच्चय (A={x\in \mathbb{N}:x\) is a perfect cube less than 30}) क्या है? \(/ What is (A={x\in \mathbb{N}:x\) is a perfect cube less than 30})?

Correct Answer: A. ({1,8,27}). Explanation: चरण 1: प्राकृतिक घन \(1^3=1\), \(2^3=8\), \(3^3=27\) हैं। चरण 2: \(4^3=64\), जो (30) से बड़ा है। चरण 3: सीमा से बाहर का अगला पद देखकर सूची रोकें। / Step 1: The natural cubes are \(1^3=1\), \(2^3=8\), and \(3^3=27\). Step 2: \(4^3=64\), which is greater than (30). Step 3: Stop the list when the next term crosses the bound.

Which concept should I revise for this Mathematics MCQ?

The natural cubes are \(1^3=1\), \(2^3=8\), and \(3^3=27\).

What exam hint can help solve this Mathematics question?

Stop the list when the next term crosses the bound. चरण 1: प्राकृतिक घन \(1^3=1\), \(2^3=8\), \(3^3=27\) हैं। चरण 2: \(4^3=64\), जो (30) से बड़ा है। चरण 3: सीमा से बाहर का अगला पद देखकर सूची रोकें।