想請教下面兩題問題:
1. Find T(t) and then find a set of parametric equations for
the tangent line to the helix given by
r(t) = 2 cost i + 2 sint j + t k at the point (根號2 , 根號2 ,四分之拍)
// 很抱歉使用中文描述該點 =ˇ=
2. Find the arc length function s(t) for the line segment given by
r(t) = (3-3t)i + 4t j , 0 <= t <= 1 (小於等於)
and write r as a function of the parameter s.
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感謝各位了
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