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What will be the (pq)-term in ( (2p-3q+r)^2 )?( (2p-3q+r)^2 ) में (pq) वाला पद क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (-12pq)(-12pq)
Twice the product of (2p) and (-3q) is (2\cdot2p\cdot(-3q)=-12pq). Exam tip: check both pair and sign.(2p) और (-3q) का दोगुना गुणनफल (2\cdot2p\cdot(-3q)=-12pq) है। परीक्षा में जोड़े और चिन्ह दोनों देखें।
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