Question
Download Solution PDFगुणोत्तर श्रेणी में 5 पदों का योग ज्ञात कीजिए, दिया गया पहला पद 14 है और सार्व अनुपात 5 है।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
पहला पद (a) = 14
सार्व अनुपात (r) = 5
प्रयुक्त सूत्र:
n पदों के लिए योग = \(a\times \dfrac{(r^n -1)}{(r-1)} \)
गणना:
Sn = \(a\times \dfrac{(r^n -1)}{(r-1)} \)
⇒ \(14\times \dfrac{(5^5-1)}{(5-1)}\)
⇒ \(14\times \dfrac{3124}{4}\) = 10934
∴ उत्तर 10934 है।
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