Question
Download Solution PDF3 +3 2 + 3 3 + ... 3 8 ची बेरीज शोधा.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFवापरलेले सूत्र:
भौमितिक प्रगतीची बेरीज (S n ) = {ax (r n - 1)}/(r - 1)
कुठे, a = प्रथम पद ; r = सामान्य गुणोत्तर ; n = पदांची संख्या
गणना:
३ +३ २ + ३ ३ + ... ३ ८ .
येथे, a = 3; r = 3 ; n = 8
मालिकेची बेरीज (S 8 ) = {ax (r 8 - 1 )}/(r - 1)
⇒ {3 x (3 8 - 1)}/(3 - 1)
⇒ (3 x 6560)/2 = 3280 x 3
⇒ ९८४०
∴ बरोबर उत्तर 9840 आहे.
Last updated on Jun 13, 2025
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