Mathematics · Progressions
यदि किसी समांतर श्रेणी का nवां पद 7n - 2 है, तो इसके n पदों का योग है:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 17n2 - 2n
- 212(7n2 + 3n)✓
- 37n2 - 3n
- 412(7n2 + 2)
सही उत्तर देखें
12(7n2 + 3n)
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