[微積] 基礎微積分
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.
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