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khallil ankaganit shreedhiche 19ve pad kay ahe 7 1
Question:
खालिल अंकगणिती श्रेढीचे 19वे पद काय आहे :
\[ 7, 13, 19, 25, ... \]
Maharashtra Class X Board - 2024
Maharashtra Class X Board
Updated On:
Nov 6, 2025
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Solution and Explanation
इथे, अंकगणिती श्रेणी दिली आहे: \( 7, 13, 19, 25, \dots \) सर्वप्रथम, श्रेणीचा सामान्य अंतर \( d = 13 - 7 = 6 \) आहे. आता, 19वे पद काढण्यासाठी, अंकगणिती श्रेणीचा सामान्य फॉर्म \( a_n = a_1 + (n - 1)d \) वापरू. \[ a_{19} = 7 + (19 - 1) \times 6 = 7 + 108 = 115 \] तर, 19वे पद \( a_{19} = 115 \) आहे.
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