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If (1,4,7,\ldots) is subtracted term by term from (18,14,10,\ldots), what will be (d) of the new sequence?यदि (18,14,10,\ldots) से (1,4,7,\ldots) को पद-दर-पद घटाया जाए तो नए अनुक्रम का (d) क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (-7)(-7)
The first sequence has (d=-4) and the second has (d=3), so the difference sequence has (d=-4-3=-7). In termwise subtraction, subtract the differences too.पहले अनुक्रम का (d=-4) और दूसरे का (d=3) है, इसलिए अंतर अनुक्रम का (d=-4-3=-7)। पद-दर-पद घटाव में अंतरों को भी घटाएं।
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