【中五數學Tips】F.5 Math Permutation & Combination 排列與組合｜Beyond Math 數學補習教育中心

[@nicolepeng-mt7gt]

多謝噻，好有用！

[@林詩琪-t2d]

文字題點睇？

[@kahong7051]

Good 😊

[@taeTae-yo5dt]

Thanks

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thx

[@sunyuecheung7528]

Dear sir,why you say that handsome boy is lonely on the line at first... what do you mean?

[@qasimlee6270]