Suzhou Education Edition Elective (2-2) 1.3 "Application of Derivatives in Research Functions" ppt understand the concept of the maximum and minimum values ​​of functions; understand the difference and connection between the extreme values ​​and the maximum values ​​of functions; The maximum and minimum values ​​of polynomial functions that do not exceed cubic on a fixed interval. Experience the generality and effectiveness of the derivative method in studying the properties of functions. 1. The maximum value of the function f (x) in the closed interval [a, b] if the function y = f (x) in the interval [a, b] The graph of is a continuous curve, then the function must be able to obtain ①________ and ② ________ on [a, b] and the maximum value of the function must be obtained in ③ ________ or ④ ________. 2. Steps to find the maximum value of function y = f (x) on [a, b] (1) Find function y = f (x) ⑤ ________; (2) ⑥ ________ and ⑦ _______ of function y = f (x) _Comparison, where the largest one is the maximum value and the smallest one is the minimum value:
Electric curtain, what differ from tradition is: annular
slippery line and condole ring are bound no longer be an organic whole,
It's connected by a belt. Specific structure
is: belt drive, in the closed curtain rod inner cavity operation, belt traction
curtain and then traction ring. This kind of new-style electric curtain belt
does not show, won't be covered with dust and twine, can electric begin to pull
compatible, make shower curtain very appropriate also.
Electric curtain, by motor, deceleration wheel group,
active wheel, pulley and belt are comprised, its characteristic is: exceed
quiet sound, slow start slow stop, lever inside cavity runs, and condole
annulus is covered entirely in curtain lever outside circumference or embed the
seam that opens into the bottom inside.
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