यदि \(a_n=5^n-n\) है तो \(a_3\) का मान क्या होगा?

If \(a_n=5^n-n\) then what is the value of \(a_3\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (122)

Step 1

Concept

\(a_3=125-3=122\). In exams find the power and subtract the term number.

Step 2

Why this answer is correct

The correct answer is B. (122). \(a_3=125-3=122\). In exams find the power and subtract the term number.

Step 3

Exam Tip

\(a_3=125-3=122\) है। परीक्षा में घात निकालकर पद संख्या घटाएँ।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=5^n-n\) है तो \(a_3\) का मान क्या होगा? / If \(a_n=5^n-n\) then what is the value of \(a_3\)?

Correct Answer: B. (122). Explanation: \(a_3=125-3=122\) है। परीक्षा में घात निकालकर पद संख्या घटाएँ। / \(a_3=125-3=122\). In exams find the power and subtract the term number.

Which concept should I revise for this Mathematics MCQ?

\(a_3=125-3=122\). In exams find the power and subtract the term number.

What exam hint can help solve this Mathematics question?

\(a_3=125-3=122\) है। परीक्षा में घात निकालकर पद संख्या घटाएँ।