看板 Math 關於我們 聯絡資訊
1. Find all critical numbers of the function f(theta)=4theta-tan(theta), that lie in the interval [0, 2pi]. 2. A particle is moving along the curve y=5sqrt(4x+5). As the particle passes through the point(1,15) , its x-coordinate increases at a rate of 3 units per second. Find the rate of change of the distance from the particle to the origin at this instant. -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 174.52.211.186
ayakashen :第二題我算31/sqrt(226)可是好像不對耶:( 07/17 16:21
JMLiang :第二題是squrt(109)吧 07/17 22:38