यदि \(a_n=5\cdot3^{n-1}\) है, तो \(a_5\) का मान क्या होगा?

If \(a_n=5\cdot3^{n-1}\), what is the value of \(a_5\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (405)

Step 1

Concept

\(a_5=5\cdot3^4=405\). First find the value of (n-1) in the exponent.

Step 2

Why this answer is correct

The correct answer is C. (405). \(a_5=5\cdot3^4=405\). First find the value of (n-1) in the exponent.

Step 3

Exam Tip

\(a_5=5\cdot3^4=405\)। घात में (n-1) का मान पहले निकालें।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=5\cdot3^{n-1}\) है, तो \(a_5\) का मान क्या होगा? / If \(a_n=5\cdot3^{n-1}\), what is the value of \(a_5\)?

Correct Answer: C. (405). Explanation: \(a_5=5\cdot3^4=405\)। घात में (n-1) का मान पहले निकालें। / \(a_5=5\cdot3^4=405\). First find the value of (n-1) in the exponent.

Which concept should I revise for this Mathematics MCQ?

\(a_5=5\cdot3^4=405\). First find the value of (n-1) in the exponent.

What exam hint can help solve this Mathematics question?

\(a_5=5\cdot3^4=405\)। घात में (n-1) का मान पहले निकालें।