Mathematics
Senior High
Resolved
請問這個圖形要怎麼畫?
7. 在空間中已知 OA = (2,2,1)、OB = (3,6,2),且OP=SOÀ+tOB,
s、t均為實數。
(1)若 s=1、0<t≤2,試問所有P點所形成的圖形為何?
其中
(2)若 1≤s≤3、-1≤t≤2,試求所有P點所形成區域的面積是 OĀ 與 OB
決定的平行四邊形面積的多少倍。
配合何頭0
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