अनुक्रम \(2,5,10,17,\ldots\) समांतर श्रेणी है या नहीं?
Is the sequence \(2,5,10,17,\ldots\) an AP?
Explanation opens after your attempt
B. नहीं, अंतर \(3,5,7,\ldots\) हैंNo, the differences are \(3,5,7,\ldots\)
Concept
The differences are not equal, so it is not an AP. In exams, decide by checking consecutive differences, not by looking at the terms only.
Why this answer is correct
The correct answer is B. नहीं, अंतर \(3,5,7,\ldots\) हैं / No, the differences are \(3,5,7,\ldots\). The differences are not equal, so it is not an AP. In exams, decide by checking consecutive differences, not by looking at the terms only.
Exam Tip
अंतर बराबर नहीं हैं, इसलिए यह समांतर श्रेणी नहीं है। परीक्षा में केवल पदों को देखकर नहीं, लगातार अंतर देखकर निर्णय लें।
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