( (a+b+c)2-\(a^2+b^2+c^2\) ) का सरल रूप क्या है?

What is the simplified form of ( (a+b+c)2-\(a^2+b^2+c^2\) )?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (2ab+2bc+2ca)

Step 1

Concept

After removing square terms from the three-term square, (2ab+2bc+2ca) remains. Exam tip: remember pairwise terms.

Step 2

Why this answer is correct

The correct answer is B. (2ab+2bc+2ca). After removing square terms from the three-term square, (2ab+2bc+2ca) remains. Exam tip: remember pairwise terms.

Step 3

Exam Tip

तीन पदों के वर्ग से वर्ग पद हटाने पर (2ab+2bc+2ca) बचता है। परीक्षा में जोड़ीदार पद याद रखें।

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Mathematics Answer, Explanation and Revision Hints

( (a+b+c)2-\(a^2+b^2+c^2\) ) का सरल रूप क्या है? / What is the simplified form of ( (a+b+c)2-\(a^2+b^2+c^2\) )?

Correct Answer: B. (2ab+2bc+2ca). Explanation: तीन पदों के वर्ग से वर्ग पद हटाने पर (2ab+2bc+2ca) बचता है। परीक्षा में जोड़ीदार पद याद रखें। / After removing square terms from the three-term square, (2ab+2bc+2ca) remains. Exam tip: remember pairwise terms.

Which concept should I revise for this Mathematics MCQ?

After removing square terms from the three-term square, (2ab+2bc+2ca) remains. Exam tip: remember pairwise terms.

What exam hint can help solve this Mathematics question?

तीन पदों के वर्ग से वर्ग पद हटाने पर (2ab+2bc+2ca) बचता है। परीक्षा में जोड़ीदार पद याद रखें।