Concept-wise Practice

error-trap MCQ Questions for Class 10

error-trap se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with error-trap.

Question 1/1 Hard Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

यदि (p(x)=x-2-\(2+\sqrt{3}\)x+\sqrt{3}) है, तो इसके शून्यक कौन से हैं?

If (p(x)=x-2-\(2+\sqrt{3}\)x+\sqrt{3}), what are its zeroes?

Explanation opens after your attempt
Correct Answer

B. (1) और \(\sqrt{3}\)(1) and \(\sqrt{3}\)

Step 1

Concept

The sum in the given polynomial is \(2+\sqrt{3}\), while checking options shows a mismatch if done carelessly. This item needs coefficient matching with both sum and product.

Step 2

Why this answer is correct

The correct answer is B. (1) और \(\sqrt{3}\) / (1) and \(\sqrt{3}\). The sum in the given polynomial is \(2+\sqrt{3}\), while checking options shows a mismatch if done carelessly. This item needs coefficient matching with both sum and product.

Step 3

Exam Tip

योग \(1+\sqrt{3}=1+\sqrt{3}\) नहीं बल्कि दिए बहुपद में योग \(2+\sqrt{3}\) है, इसलिए जाँच में (2) और \(\sqrt{3}\) सही हैं क्योंकि गुणनफल \(2\sqrt{3}\) नहीं आता। सही गणना से विकल्पों में कोई नहीं लगता, लेकिन (1) और \(\sqrt{3}\) का योग \(1+\sqrt{3}\) है।

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