CALCULUS PREP PROF. DAVI MISTURINI CLASS 07: INTRODUCTION TO INTEGRALS
MAXIMUM AND MINIMUM VALUES A function has an absolute maximum (or global maximum ) at if for all . A function has a local maximum (or relative maximum ) at if when is near . Example : Analysing with a graphic calculator the minimum and maximum values of where .
The extreme value theorem : If is continuous on a closed interval , then attains an absolute maximum value and an absolute minimum value , for some numbers . Fermat’s Theorem : If as a local maximum or minimum at , and if exists, then .
The extreme value theorem : If is continuous on a closed interval , then attains an absolute maximum value and an absolute minimum value , for some numbers . Fermat’s Theorem : If as a local maximum or minimum at , and if exists, then . If for some , then is a maximum/minimum?
A critical number of a function is a number in the domain of such that either or does not exist. If has a local maximum or minimum at then is a creitical number. Example : Find the critical numbers of .
Example : Find the absolute maximum and minimum values of the function where .
Example : Use a graphing device to estimate the absolute minimum and maximum values of the function , Use calculus to find the exact minimum and maximum values.
THE MEAN VALUE THEOREM
MOSTRAR GEOGEBRA
Theorem: If for all in an interval then is a constant on
HOW DERIVATIVES AFFECT THE SHAPE OF A GRAPH Example : Find where the function is increasing and where it is decreasing.
Example : Discuss the curve with respect to concavity, points of inflection, and local maxima and minima. Use this information to sketch the curve.