Subjects

πŸ“˜ geometry, vector algebra

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Point Division Vector Length Bd25Cc
1. ε•ι‘Œι™³θΏ°οΌš ε·²ηŸ₯點 $A(2,1)$、$B(6,9)$,點 $P$ εœ¨η›΄η·š $AB$ δΈŠοΌŒδΈ” $AP : PB = 3 : 1$οΌŒζ±‚ι»ž $P$ ηš„εζ¨™γ€‚