कौन सा समीकरण वास्तविक, परिमेय और भिन्न मूल रखता है?

Which equation has real, rational and distinct roots?

Explanation opens after your attempt
Correct Answer

A. \(x^2-9x+20=0\)

Step 1

Concept

In the first equation (D=(-9)2-4(1)(20)=1). Hence the roots are real, rational and distinct.

Step 2

Why this answer is correct

The correct answer is A. \(x^2-9x+20=0\). In the first equation (D=(-9)2-4(1)(20)=1). Hence the roots are real, rational and distinct.

Step 3

Exam Tip

पहले समीकरण में (D=(-9)2-4(1)(20)=1) है। इसलिए मूल वास्तविक, परिमेय और भिन्न हैं।

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कौन सा समीकरण वास्तविक, परिमेय और भिन्न मूल रखता है? / Which equation has real, rational and distinct roots?

Correct Answer: A. \(x^2-9x+20=0\). Explanation: पहले समीकरण में (D=(-9)2-4(1)(20)=1) है। इसलिए मूल वास्तविक, परिमेय और भिन्न हैं। / In the first equation (D=(-9)2-4(1)(20)=1). Hence the roots are real, rational and distinct.

Which concept should I revise for this Mathematics MCQ?

In the first equation (D=(-9)2-4(1)(20)=1). Hence the roots are real, rational and distinct.

What exam hint can help solve this Mathematics question?

पहले समीकरण में (D=(-9)2-4(1)(20)=1) है। इसलिए मूल वास्तविक, परिमेय और भिन्न हैं।