Sequences & Series | Geometric Progression | Lec_23-6.6 | Math11 Unit 6 | Ex. # 6.6 Q. # 11, 12 & 14

Whole-channel inclusion: MathLogic is an honest teaching channel (title sample + 3 transcripts read: The one sample with a transcript is a structured math lecture deriving moment of inertia formulas, consistent with the channel's teaching verdict.); this title passed a strict title check (sonnet) after a labelling pass.