यदि \(a_n=\frac{n^2+n}{2}\) है, तो \(a_{10}\) क्या होगा?

If \(a_n=\frac{n^2+n}{2}\), what is \(a_{10}\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (55)

Step 1

Concept

\(a_{10}=\frac{100+10}{2}=55\). Simplify the numerator first and then divide by (2).

Step 2

Why this answer is correct

The correct answer is C. (55). \(a_{10}=\frac{100+10}{2}=55\). Simplify the numerator first and then divide by (2).

Step 3

Exam Tip

\(a_{10}=\frac{100+10}{2}=55\)। अंश को पहले सरल करें फिर (2) से भाग दें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=\frac{n^2+n}{2}\) है, तो \(a_{10}\) क्या होगा? / If \(a_n=\frac{n^2+n}{2}\), what is \(a_{10}\)?

Correct Answer: C. (55). Explanation: \(a_{10}=\frac{100+10}{2}=55\)। अंश को पहले सरल करें फिर (2) से भाग दें। / \(a_{10}=\frac{100+10}{2}=55\). Simplify the numerator first and then divide by (2).

Which concept should I revise for this Mathematics MCQ?

\(a_{10}=\frac{100+10}{2}=55\). Simplify the numerator first and then divide by (2).

What exam hint can help solve this Mathematics question?

\(a_{10}=\frac{100+10}{2}=55\)। अंश को पहले सरल करें फिर (2) से भाग दें।