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Which is the correct expansion of ( (a+b+c)^2 )?( (a+b+c)^2 ) का सही विस्तार कौन सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (a^2+b^2+c^2+2ab+2bc+2ca)(a^2+b^2+c^2+2ab+2bc+2ca)
Each pair gives a double mixed term in three terms. Exam tip: do not miss (2ab), (2bc), and (2ca).तीन पदों में प्रत्येक जोड़े का दुगुना मिश्र पद आता है। परीक्षा में (2ab), (2bc), और (2ca) न छोड़ें।
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