यदि \(a_1=9\) और \(a_{n+1}=2a_n+3n-2\) है तो \(a_3\) क्या होगा?

If \(a_1=9\) and \(a_{n+1}=2a_n+3n-2\), what is \(a_3\)?

Author: Muft Shiksha Editorial Team Published: Updated:
Explanation opens after your attempt
Correct Answer

C. (42)

Step 1

Concept

The terms are (9,19,42), so \(a_3=42\). Exam tip: double the previous term first and then add (3n-2).

Step 2

Why this answer is correct

The correct answer is C. (42). The terms are (9,19,42), so \(a_3=42\). Exam tip: double the previous term first and then add (3n-2).

Step 3

Exam Tip

पद (9,19,42) हैं इसलिए \(a_3=42\) है। पहले पिछले पद को दोगुना करें फिर (3n-2) जोड़ें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_1=9\) और \(a_{n+1}=2a_n+3n-2\) है तो \(a_3\) क्या होगा? / If \(a_1=9\) and \(a_{n+1}=2a_n+3n-2\), what is \(a_3\)?

Correct Answer: C. (42). Explanation: पद (9,19,42) हैं इसलिए \(a_3=42\) है। पहले पिछले पद को दोगुना करें फिर (3n-2) जोड़ें। / The terms are (9,19,42), so \(a_3=42\). Exam tip: double the previous term first and then add (3n-2).

Which concept should I revise for this Mathematics MCQ?

The terms are (9,19,42), so \(a_3=42\). Exam tip: double the previous term first and then add (3n-2).

What exam hint can help solve this Mathematics question?

पद (9,19,42) हैं इसलिए \(a_3=42\) है। पहले पिछले पद को दोगुना करें फिर (3n-2) जोड़ें।