→ a016258:積到哪了? 01/08 13:33
→ dayeh:積分 √1+x^2 dx 算不出 01/08 15:46
→ a016258:let x = tany 01/08 16:31
→ dayeh:請問第二小題？大概要怎算？謝謝 01/09 23:32
Given
x=tsint
y=tcost
A.Compute the arc length for 0<= t <=1
B. Compute dy/dx and compute its value at t=0
式子列出來可是積分一直解不出
麻煩高手解答一下
謝謝
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