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If (5a-2, 3a+6, a+18) are in an arithmetic progression, what will be the common difference?यदि (5a-2, 3a+6, a+18) अंकगणितीय श्रेणी में हैं तो सार्व अंतर क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (4)(4)
(2(3a+6)=(5a-2)+(a+18)) gives (a=2). Then the terms (8,12,20) do not have equal differences, so no arithmetic progression is formed.(2(3a+6)=(5a-2)+(a+18)) से (a=2) मिलता है। तब पद (8,12,20) नहीं बल्कि (8,12,20) समान अंतर नहीं देते, इसलिए सही जांच से कोई अंकगणितीय श्रेणी नहीं बनती।
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