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Which of the following sequences is not an arithmetic progression (AP)?निम्नलिखित में से कौन-सा अनुक्रम समांतर श्रेणी (AP) नहीं है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(3,6,12,24,\ldots\)\(3,6,12,24,\ldots\)
In option C, the consecutive differences are \(3,6,12\), which are not equal, so it is not an AP. Its terms are multiplied by 2 each time. Exam tip: compare consecutive differences first.विकल्प C में क्रमागत पदों के अंतर \(3,6,12\) हैं, जो समान नहीं हैं; इसलिए यह AP नहीं है। यह हर बार 2 से गुणा होने वाला अनुक्रम है। परीक्षा में पहले दो अंतर अवश्य जाँचें।
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