Hard Mathematics Chapter 1: Real Numbers Class 10 Level 15

यदि \(\frac{1}{x}\) परिमेय है और \(x\neq0\), तो (x) के अपरिमेय होने के बारे में सही निष्कर्ष क्या है?

If \(\frac{1}{x}\) is rational and \(x\neq0\), what is the correct conclusion about (x) being irrational?

Explanation opens after your attempt
Correct Answer

B. (x) अवश्य परिमेय है(x) must be rational

Step 1

Concept

If \(\frac{1}{x}\) is rational and non-zero, then its reciprocal is also rational.

Step 2

Why this answer is correct

Therefore (x) is rational, not irrational.

Step 3

Exam Tip

In reciprocal questions, always check the non-zero condition. चरण 1: यदि \(\frac{1}{x}\) परिमेय है और शून्य नहीं है, तो उसका व्युत्क्रम भी परिमेय होगा। चरण 2: इसलिए (x) परिमेय होगा, अपरिमेय नहीं। चरण 3: व्युत्क्रम वाले प्रश्नों में शून्य की शर्त जरूर देखें।

FAQs

Mathematics Question FAQs

What is the correct answer to this Mathematics MCQ?

The correct answer is B. (x) अवश्य परिमेय है / (x) must be rational.

Where can I practice more Mathematics questions?

Open the subject page or level quiz links on this page to practice more active Mathematics MCQs with answers and explanations.

Related Mathematics Questions

Student Class Required

Select your class first

Quiz questions, daily challenge and practice pages will open according to your selected class. Class 11/12 ke liye stream bhi select karein.