微积分I(标准路径) · 免费预览
§4.4 The Fundamental Theorem of Calculus (continued)
如何在不取黎曼和的极限的情况下求出定积分的精确值?
1. Summary
Summary
2. Average of a piecewise function
A piecewise function on is built from three parabolic or linear pieces, and direct computation of the pieces gives . Its average value on is
3. Climbing time from a reciprocal table
An aircraft's climb rate table gives in feet per minute. To estimate total time to climb to feet, the right move is to
4. Two averages that must agree
For an object with position and velocity , the average velocity and the average value of on satisfy
5. Boosting a distance by a constant
An object's velocity on integrates to meters. If velocity is increased everywhere by a constant , the value of making the distance traveled on equal meters is
6. Peak acceleration from a velocity graph
On the velocity obeys , so , and on the velocity is linear with slope . The greatest acceleration is
7. Average value from an integral
For the piecewise function with average value on , compute as a decimal.
8. Average velocity on a late window
For the object with velocity graph on minutes, the accumulated displacement on is meters. Compute the average velocity on that window.
9. Exact distance over the curved stretch
With on and antiderivative , compute the exact distance traveled in meters.
10. Antiderivative of reciprocal on the negative side
For , the function is a valid antiderivative of .