Hard Mathematics Quadratic Equations Class 10 Level 33

(x-2-2x+(p+3)=0) की वास्तविक जड़ें न हों, इसके लिए (p) पर सही शर्त क्या है?

For (x-2-2x+(p+3)=0) to have no real roots, what is the correct condition on (p)?

Explanation opens after your attempt
Correct Answer

A. (p>-2)

Step 1

Concept

For no real roots, (D<0) is required. Here (D=-4(p+2)), so (p>-2).

Step 2

Why this answer is correct

The correct answer is A. (p>-2). For no real roots, (D<0) is required. Here (D=-4(p+2)), so (p>-2).

Step 3

Exam Tip

वास्तविक जड़ें न होने के लिए (D<0) चाहिए। यहाँ (D=-4(p+2)), इसलिए (p>-2) है।

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Mathematics Answer, Explanation and Revision Hints

(x-2-2x+(p+3)=0) की वास्तविक जड़ें न हों, इसके लिए (p) पर सही शर्त क्या है? / For (x-2-2x+(p+3)=0) to have no real roots, what is the correct condition on (p)?

Correct Answer: A. (p>-2). Explanation: वास्तविक जड़ें न होने के लिए (D<0) चाहिए। यहाँ (D=-4(p+2)), इसलिए (p>-2) है। / For no real roots, (D<0) is required. Here (D=-4(p+2)), so (p>-2).

Which concept should I revise for this Mathematics MCQ?

For no real roots, (D<0) is required. Here (D=-4(p+2)), so (p>-2).

What exam hint can help solve this Mathematics question?

वास्तविक जड़ें न होने के लिए (D<0) चाहिए। यहाँ (D=-4(p+2)), इसलिए (p>-2) है।

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