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identity use MCQ Questions for Class 9

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Question 1/1 Easy Mathematics Exploring Algebraic Identities Algebraic identities Class 9 Level 66

\( 101^2 \) निकालने के लिए कौन सी सर्वसमिका सबसे उपयुक्त है?

Which identity is most suitable to find \( 101^2 \)?

Explanation opens after your attempt
Correct Answer

B. ( (a+b)2 )

Step 1

Concept

Since (101=100+1), ( (a+b)2 ) is useful. Exam tip: choose a nearby easy number.

Step 2

Why this answer is correct

The correct answer is B. ( (a+b)2 ). Since (101=100+1), ( (a+b)2 ) is useful. Exam tip: choose a nearby easy number.

Step 3

Exam Tip

(101=100+1), इसलिए ( (a+b)2 ) उपयोगी है। परीक्षा में पास की आसान संख्या चुनें।

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