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Is the sequence (a_n=n^2-3n+2) an AP?अनुक्रम (a_n=n^2-3n+2) समांतर श्रेणी है या नहीं?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: No, (a_{n+1}-a_n=2n-2) is not constantनहीं, (a_{n+1}-a_n=2n-2) स्थिर नहीं है
Here the difference depends on (n), so it is not constant. In exams, a quadratic (a_n) usually does not form an AP.यहां अंतर (n) पर निर्भर करता है, इसलिए स्थिर नहीं है। परीक्षा में द्विघात (a_n) सामान्यतः समांतर श्रेणी नहीं देता।
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