#educationUnmoderated tag#educationHotmes in # math • 2 days ago • 2 min readGeometric Series: Deriving the Sum using an Ingenious Method (and via Similar Triangles)3Speak - YouTube - Telegram - Notes - Playlist - Sequences and Series - MES Links In this video, I go over the geometric series, which is the sum a + a r + a r^2 + ..., and show that if the absolute value of the common ratio r is less than 1, then the sum is just the first term divided by one minus the common ratio. I…
