Hard Mathematics Sequences and Progressions Class 9 Level 48

अनुक्रम \(3,9,19,33,\ldots\) के लिए सही सामान्य नियम कौन सा है?

Which general rule is correct for the sequence \(3,9,19,33,\ldots\)?

Explanation opens after your attempt
Correct Answer

B. \(2n^2+1\)

Step 1

Concept

For (n=1,2,3,4), \(2n^2+1\) gives the given terms. While checking options, match the first four terms.

Step 2

Why this answer is correct

The correct answer is B. \(2n^2+1\). For (n=1,2,3,4), \(2n^2+1\) gives the given terms. While checking options, match the first four terms.

Step 3

Exam Tip

(n=1,2,3,4) रखने पर \(2n^2+1\) से दिए गए पद मिलते हैं। विकल्प जांचते समय पहले चार पद मिलाना उपयोगी है।

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FAQs

Mathematics Answer, Explanation and Revision Hints

अनुक्रम \(3,9,19,33,\ldots\) के लिए सही सामान्य नियम कौन सा है? / Which general rule is correct for the sequence \(3,9,19,33,\ldots\)?

Correct Answer: B. \(2n^2+1\). Explanation: (n=1,2,3,4) रखने पर \(2n^2+1\) से दिए गए पद मिलते हैं। विकल्प जांचते समय पहले चार पद मिलाना उपयोगी है। / For (n=1,2,3,4), \(2n^2+1\) gives the given terms. While checking options, match the first four terms.

Which concept should I revise for this Mathematics MCQ?

For (n=1,2,3,4), \(2n^2+1\) gives the given terms. While checking options, match the first four terms.

What exam hint can help solve this Mathematics question?

(n=1,2,3,4) रखने पर \(2n^2+1\) से दिए गए पद मिलते हैं। विकल्प जांचते समय पहले चार पद मिलाना उपयोगी है।

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