[微積] 一題微積分
一題微積分
題目有點長也蠻難的@@ 沒有詳解
懇請板上高手解答~
A boy,standing in corner A of a rectangular pool,
has a boat in the adjacent corner B on the end of a 10 meter-long.
He walks along the side of the pool toward C keeping the string taut.
Locate the boy and the boat when the latter is 6 meters from AC .
(hint: choose the coordinate system so that AC is along the x- axis
and AB is along the y-axis)
Given:ln3~=1.1
ans:船的位置(3,6) 男孩的位置(11,0)
感恩
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