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non-example MCQ Questions for Class 10

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3 questions tagged with non-example.

Question 1/3 Easy Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 30

समीकरण \(\sqrt{x}+x^2=0\) को सामान्य रूप में द्विघात क्यों नहीं माना जाता?

Why is \(\sqrt{x}+x^2=0\) not considered a quadratic equation in the usual form?

Explanation opens after your attempt
Correct Answer

D. क्योंकि इसमें \(\sqrt{x}\) पद हैBecause it has a \(\sqrt{x}\) term

Step 1

Concept

The term \(\sqrt{x}\) shows a fractional power of the variable, so it is not in usual quadratic form. A quadratic equation has only \(x^2\), (x), and constant terms.

Step 2

Why this answer is correct

The correct answer is D. क्योंकि इसमें \(\sqrt{x}\) पद है / Because it has a \(\sqrt{x}\) term. The term \(\sqrt{x}\) shows a fractional power of the variable, so it is not in usual quadratic form. A quadratic equation has only \(x^2\), (x), and constant terms.

Step 3

Exam Tip

\(\sqrt{x}\) चर की भिन्न घात दिखाता है इसलिए यह सामान्य द्विघात रूप में नहीं है। द्विघात में केवल \(x^2\), (x) और स्थिर पद होते हैं।

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Question 2/3 Easy Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 30

समीकरण \(\frac{1}{x^2}+x+1=0\) द्विघात समीकरण क्यों नहीं है?

Why is \(\frac{1}{x^2}+x+1=0\) not a quadratic equation?

Explanation opens after your attempt
Correct Answer

A. क्योंकि इसमें (x) की ऋणात्मक घात हैBecause it has a negative power of (x)

Step 1

Concept

\(\frac{1}{x^2}=x^{-2}\), which is not polynomial form. A quadratic equation cannot have a negative power of the variable.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि इसमें (x) की ऋणात्मक घात है / Because it has a negative power of (x). \(\frac{1}{x^2}=x^{-2}\), which is not polynomial form. A quadratic equation cannot have a negative power of the variable.

Step 3

Exam Tip

\(\frac{1}{x^2}=x^{-2}\) है जो बहुपद रूप नहीं है। द्विघात समीकरण में चर की ऋणात्मक घात नहीं होती।

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Question 3/3 Easy Mathematics Quadratic Equations Introduction to Quadratic Equations Class 10 Level 30

समीकरण (3x+2=0) द्विघात क्यों नहीं है?

Why is (3x+2=0) not a quadratic equation?

Explanation opens after your attempt
Correct Answer

D. क्योंकि सबसे बड़ी घात (1) हैBecause the highest power is (1)

Step 1

Concept

In (3x+2=0), the highest power of (x) is (1). A quadratic equation must have highest power (2).

Step 2

Why this answer is correct

The correct answer is D. क्योंकि सबसे बड़ी घात (1) है / Because the highest power is (1). In (3x+2=0), the highest power of (x) is (1). A quadratic equation must have highest power (2).

Step 3

Exam Tip

(3x+2=0) में (x) की सबसे बड़ी घात (1) है। द्विघात के लिए सबसे बड़ी घात (2) होनी चाहिए।

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