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unnecessary-step MCQ Questions for Class 10

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2 questions tagged with unnecessary-step.

Question 1/2 Expert Mathematics Real Numbers Proof of irrationality of √2, √3, √5 Class 10 Level 18

\(\sqrt{3}\) की अपरिमेयता के प्रमाण में कौन-सा कथन अनावश्यक है?

Which statement is unnecessary in the proof of irrationality of \(\sqrt{3}\)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{3}\) का लंबा दशमलव मान लिखनाWriting a long decimal value of \(\sqrt{3}\)

Step 1

Concept

A long decimal value is not a necessary part of the proof.

Step 2

Why this answer is correct

The proof is based on rational assumption, squaring, and prime divisibility.

Step 3

Exam Tip

Avoid unnecessary decimals in exams. चरण 1: लंबा दशमलव मान प्रमाण का जरूरी हिस्सा नहीं है। चरण 2: प्रमाण परिमेय मान्यता, वर्ग और अभाज्य विभाज्यता पर आधारित है। चरण 3: परीक्षा में अनावश्यक दशमलव लिखने से बचें।

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Question 2/2 Expert Mathematics Real Numbers Proof of irrationality of √2, √3, √5 Class 10 Level 16

कौन-सा विकल्प \(\sqrt{5}\) की अपरिमेयता के प्रमाण में अनावश्यक है?

Which option is unnecessary in the proof of irrationality of \(\sqrt{5}\)?

Explanation opens after your attempt
Correct Answer

A. \(\sqrt{5}\) का लंबा दशमलव मान लिखनाWriting a long decimal value of \(\sqrt{5}\)

Step 1

Concept

A long decimal value is not a necessary part of the proof.

Step 2

Why this answer is correct

The real proof is based on rational assumption and divisibility.

Step 3

Exam Tip

To save time, write only the logical steps. चरण 1: लंबा दशमलव मान प्रमाण का जरूरी हिस्सा नहीं है। चरण 2: असली प्रमाण परिमेय मान्यता और विभाज्यता पर आधारित है। चरण 3: समय बचाने के लिए केवल तार्किक कदम लिखें।

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