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If (1, 5, 9,\ldots) is subtracted term by term from (20, 17, 14,\ldots), what will be (d) of the new sequence?यदि (20, 17, 14,\ldots) से (1, 5, 9,\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=-3) and the second has (d=4), so the difference sequence has (d=-3-4=-7). In termwise subtraction, subtract the common differences too.पहले अनुक्रम का (d=-3) और दूसरे का (d=4) है, इसलिए अंतर अनुक्रम का (d=-3-4=-7)। पद-दर-पद घटाव में सार्व अंतरों को भी घटाएं।
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