Concept-wise Practice

2qr MCQ Questions for Class 9

2qr 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 2qr.

( (p+q+r)2 ) में (2qr) क्यों आता है?

Why does (2qr) appear in ( (p+q+r)2 )?

Explanation opens after your attempt
Correct Answer

A. क्योंकि (q) और (r) की जोड़ी का दोहरा गुणन होता हैBecause the pair (q) and (r) gives a double product

Step 1

Concept

In a three-term square, each pair gives a product term multiplied by (2). Exam tip: think in pairs.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि (q) और (r) की जोड़ी का दोहरा गुणन होता है / Because the pair (q) and (r) gives a double product. In a three-term square, each pair gives a product term multiplied by (2). Exam tip: think in pairs.

Step 3

Exam Tip

तीन पदों के वर्ग में हर दो पदों की जोड़ी से (2) गुणा पद आता है। परीक्षा में जोड़ी आधारित सोच रखें।

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