यदि \(a_5=625\) और (r=5) है, तो पहला पद (a) क्या होगा?

If \(a_5=625\) and (r=5), what is the first term (a)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

A. (1)

Step 1

Concept

\(a_5=ar^4\), so \(625=a\cdot5^4\) and (a=1). In exams, divide the fifth term by \(r^4\).

Step 2

Why this answer is correct

The correct answer is A. (1). \(a_5=ar^4\), so \(625=a\cdot5^4\) and (a=1). In exams, divide the fifth term by \(r^4\).

Step 3

Exam Tip

\(a_5=ar^4\), इसलिए \(625=a\cdot5^4\) और (a=1) है। परीक्षा में पाँचवें पद से \(r^4\) भाग दें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_5=625\) और (r=5) है, तो पहला पद (a) क्या होगा? / If \(a_5=625\) and (r=5), what is the first term (a)?

Correct Answer: A. (1). Explanation: \(a_5=ar^4\), इसलिए \(625=a\cdot5^4\) और (a=1) है। परीक्षा में पाँचवें पद से \(r^4\) भाग दें। / \(a_5=ar^4\), so \(625=a\cdot5^4\) and (a=1). In exams, divide the fifth term by \(r^4\).

Which concept should I revise for this Mathematics MCQ?

\(a_5=ar^4\), so \(625=a\cdot5^4\) and (a=1). In exams, divide the fifth term by \(r^4\).

What exam hint can help solve this Mathematics question?

\(a_5=ar^4\), इसलिए \(625=a\cdot5^4\) और (a=1) है। परीक्षा में पाँचवें पद से \(r^4\) भाग दें।