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If (a_1=9) and each next term is (7) less than the previous term, what is the explicit rule?यदि (a_1=9) और प्रत्येक अगला पद पिछले पद से (7) कम है, तो स्पष्ट नियम क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (a_n=16-7n)(a_n=16-7n)
The first term is (9) and the difference is (-7), so (a_n=9+(n-1)(-7)=16-7n). When forming a rule from words, treat decrease as a negative difference.पहला पद (9) और अंतर (-7) है इसलिए (a_n=9+(n-1)(-7)=16-7n)। शब्दों से नियम बनाते समय घटाव को ऋणात्मक अंतर मानें।
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