यदि \(a_n=2n^2+n\) है, तो \(a_5-a_3\) का मान क्या होगा?

If \(a_n=2n^2+n\), what is the value of \(a_5-a_3\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

D. (34)

Step 1

Concept

(a_5=2\(5^2\)+5=55) and (a_3=2\(3^2\)+3=21). Therefore the difference is (55-21=34).

Step 2

Why this answer is correct

The correct answer is D. (34). (a_5=2\(5^2\)+5=55) and (a_3=2\(3^2\)+3=21). Therefore the difference is (55-21=34).

Step 3

Exam Tip

(a_5=2\(5^2\)+5=55) और (a_3=2\(3^2\)+3=21) है। इसलिए अंतर (55-21=34) है।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=2n^2+n\) है, तो \(a_5-a_3\) का मान क्या होगा? / If \(a_n=2n^2+n\), what is the value of \(a_5-a_3\)?

Correct Answer: D. (34). Explanation: (a_5=2\(5^2\)+5=55) और (a_3=2\(3^2\)+3=21) है। इसलिए अंतर (55-21=34) है। / (a_5=2\(5^2\)+5=55) and (a_3=2\(3^2\)+3=21). Therefore the difference is (55-21=34).

Which concept should I revise for this Mathematics MCQ?

(a_5=2\(5^2\)+5=55) and (a_3=2\(3^2\)+3=21). Therefore the difference is (55-21=34).

What exam hint can help solve this Mathematics question?

(a_5=2\(5^2\)+5=55) और (a_3=2\(3^2\)+3=21) है। इसलिए अंतर (55-21=34) है।