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(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件

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(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件
(5.2)-高数1函数课件笔记版_08.2026考研数学高途王喆全程班_赠送2025课程_25考研数学(一、二)全年智达班_{2}--资料_{5}-25考研数学强化课件

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2025强化学什么? 以题型为纲,总结各种解题思路、解题方法、解题技巧。 'E 4 4 4 -- : + + 86/ = T 5 57 + + 118 : =第一章 函数第二部分 题型解析 题型一、求函数表达式(★★) 考法 1: f (x)含有未知常数,求 f (x)表达式 解题思路—— f (x)含有的未知常数可能是个极限或是个定积分,应把 常数设成 A,再对 f (x)求极限或定积分,解出常数 A 即得 f (x).1 【例1.1】 已知函数 f (x)连续,且 f (x) = x −  f (x)dx,求函数 f (x). 0 fN # 23 /6 finax A Y X A = = - : , f(x,y) -famdr 10 fixdx Co (x-A)dxBER = = x - = 5 fixy) ? -B = A E A => = - fix X-to fill 13: E at = = = => A f(x) * ? = fin X- - = . f Ge fix 1- = =b 考法 2:求含参极限 y = lim f (x)、含参积分 y =  f (t, x)dt 型函数表 n n→ a ↑ ↑ 达式 F F 解题思路——搞清楚谁是极限变量(或积分变量),谁是参数,然后对 参数进行讨论,算出极限(或积分)得到函数的表达式.x2 + en(1−x) 【例1.2】 设 f (x) = lim ,求 f (x)的间断点并判断类型. 2 + en(1−x) n→ [H) nE IBREX* SJR X4 X= 1 X >1 . = , , , enGX) et0 fi #4 DEX11 At 1 : n+ co = = +, = , , . ey e fi 5 1 ② EX 1 = = = , = . , = ev fi e0 OAf ③ Ex ne 0 , = = , , I = fl f(il = 1 1 = - * EKEK-- -X =1 【例1.3】 设 f ( x) =  t − x tdt,求 f (x)的表达式. 0 [E] - I X- Th +EXXA : , , . QXli@X 0:0 2x = = = eX fin-2Xf(x) x (4) => = 0 (n(y) = + c = = => * elivax. + = y (Sefixdy fix = =e => c oax = + . X2 & e * = C f(0) ce x = = 2. . ( = 2 · - Gex - = fix er = = 2 .题型二:关于函数的四种特性(★★★) 解题思路——利用函数 4 个特性的定义、性质、结论来判别.相关知识点 一、有界性 1.定义 如果x  I 都有| f (x) | M ,则称 f (x)在区间 I 上有界,否则 称 f (x)在区间I 上无界. f (x)在区间I 上有界 f (x)又有上界又有下界.2.与有界相关的结论 结论 1 如果 f (x)在[a,b]连续,则 f (x)在[a,b]有界. f(x) M m = = 结论 2 若 lim f (x)存在,则在 x 的某邻域内, f (x)有界. 0 x→x 0结论 3 如果 f (x)在(a,b)连续且 lim f ( x)与 lim f ( x)都存在(a和b可以 + − x→a x→b 为−及+),则 f (x)在(a,b)上有界. # O111 ( I I03 - a P 结论 4 若 f (x)在有限区间(a,b)内有界,则 f (x)也在(a,b)内有界. 1 z ( * 10 1) * * = 10 1) E . .3.与无界相关的结论 结论 1 若x  I ,使 lim f (x) = ,则 f (x)在区间 0 x→x 0 I 上无界. 结论 2 f (x)无界的充要条件是存在某子列 f ( x ),当n → 时, n f (x ) → . n二、单调性 1.定义: 2.判别法: (1)定义法 x  x  I ,若 f (x ) − f (x )  0( 0),或当 f (x)  0时, 1 2 1 2 f ( x ) 有 1  1( 1)则 f (x)为单调增(减)函数. f ( x ) 2 (2)导数法 若可导函数 f (x)在区间I 上有 f (x)  0( 0),则 f (x)在区 间I 上单调递增(减). (4 B 4 ]) = 0三、奇偶性 1.定义:设I 关于原点对称,若x  I ,恒有 f (− x) = f (x) ( f (− x) = − f (x)),则称 f (x)为偶(奇)函数. f (x) + f (−x)为偶函数; f (x) − f (− x)为奇函数. 2.奇偶函数的运算性质: ①奇±奇=奇;偶±偶=偶;奇±偶(两者不恒为常数 0)为非奇非偶函数. ②奇×偶=奇;偶×偶=偶;奇×奇=偶,除法相同.③复合函数的奇偶性: f (x) g(x) f [g(x)] 奇 奇 奇 奇 偶 偶 偶 奇 偶 偶 偶 偶3.与奇偶性有关的结论 结论 1 求导改变奇偶性. #f G ERA 42 fines fi-xx f(x) . F = = fix) fIN : = = - = Y - x 结论 2 F(x) =  f (t)dt 改变 f (x)的奇偶性. 0 ( = -e) F(x fi fauzau) to = at fit) -et) = f(t) fit) -f(t) Co* fit) at D F(X) FIND = , .: = = , Fi EX : . Pl fit) fit) -So fit)at ② EfIE FEX EN) = = = - , , Fine : .x 结论 3 若 f (x)为可积的奇函数,则F(x) =  f (t)dt (a  0)必为偶函 ’ a x 数;若 f (x)为偶函数,则F(x) =  f (t)dt 未必是奇函数. a /"costat sati" smx-sin = = 结论 4 若 f (x)为连续的奇函数,则 f (x)dx必为偶函数;若 f (x)为偶 函数,则 f (x)dx的结果中仅 1 个奇函数,其余都为非奇非偶函数. JShxdX 2 = - cosX + /cosxax Smx C + =四、周期性 f( t) - 1.定义: fl fr -+) 2.周期函数的性质: fl - (t + T)) = - t - T) I - - - - 3.与周期性相关的结论 T a+nT T 结论 1 若 f (x)周期为 T,则 f (x)dx = n f (x)dx = n 2 f (x)dx. T a 0 − 2 "ll ~ Ill .... int 结论 2 若 f (x)是周期为 T 的周期函数,则 f (x)也是周期为 T 的周期 函数. fixtT) fix i fix fix) = = + i) = .x 结论 3 若 f (x)是周期为 T 的周期函数,则 f (t)dt 与 f (x)dx仍以 T a T 为周期的充要条件是 f (x)dx = 0. 0 T T 特别地,若 f (x)是周期为 T 的奇函数,则 f (x)dx =  2 f (x)dx = 0, T 0 − 2 x 所以 f (t)dt 与 f (x)dx都必然仍是周期为 T 的周期函数. a LEAA iR FIN /a fitt Il FINEX TE E = : , Ca *** Sa F(x) f()dt #> FNX+T) = < = fil at & ** DSafide E It fina [ fidt - + = a ( fat 0 Es to fitat = =ln x  1  【例1.5】 函数 f ( x) = 在区间 ,1 上为( E ).   x 2   - X S (A) 有上界无下界 (B) 有下界无上界 1 / (C) 有界且−2ln2  f (x)  0 (D) 有界且−2ln2  f ( x)  − - 4 -InX fin 1 # 15- EXEItl] #J fiNTO : = : · , X2 Int fixt flet fill 2122 , = I = - , = =0 fix : 2In2 = = O - fINE fill 35 [t 1) # , 0 =: = ,x sin(x − 2) 【例1.6】 函数 f (x) = 在下列哪个区间内有界( A ) x(x − 1)(x − 2)2 (A& (−,0) (B) (0,1) (C) (1,2) (D) (2,3) ) # Si(X-2) # In (A) : = 8 cX(x 1) (x -2)2 A - - - Sm2 - - um D 11 Sm(X-2) Shil . = Sh2 = 6- - * PX(X - 1) P(X - 2)= 4 ↓ I - I Sh > - - ↑ (B) Pu I Sm(X-2) c - = 1 * X(X 1)(x 2)2 - - ↑ BY2 (D) 8 * - I Si (X-2) Im X- 2 =Sm Im - = a I 2t 2)2 X 25 x(x - 1) (x - 2)2 * (x - 4 24 8【例1.7】 设 f (x), g(x)是恒大于零的可导函数,且 f (x)g(x) − f (x)g(x)  0.则当a  x  b时,下列结论成立的是( A ). . - (A) f (x)g(b)  f (b)g(x) (B) f (x)g(a)  f (a)g(x) (C) f (x)g(x)  f (b)g(b) (D) f (x)g(x)  f (a)g(a) = fixgx-fing gi bAJ : a< X < p D f(u) f(x) in 91x) < &(a) => . - # f(b)414) 9(b) <【例1.8】 设奇函数 f (x)在(−,+)上具有连续导数,则( A ). x x     (A) cos f (t) + f (t) dt 是奇函数 (B) cos f (t) + f (t) dt 是偶函数 0 0 x x     (C) cos f (t) + f (t) dt 是奇函数 (D) cos f (t) + f (t) dt 是偶函数 0 0 1T f(t) fit)] at [ los + T T + Co * [cosfith fit)] + = EHE at + = TiE F +【例1.9】 设 f (x)是周期为 T 的周期函数,则下列必定仍是以 T 为周期 C 的是( ) x x x x (XA) f (t)dt ( IV B) f (t2 )dt (C) [ f (t) − f (−t)]d X t (D) [ f (t) + f (−t)]dt 0 0 0 0 ? Co"fit)dt (A) 0 = C fitatEO fit : fix A HE T ** T (B) , , So frtTat = f(t)-fit) REAT fit-fr + () , T = 0 = (F2fit fi (D) + + ) at o -【例1.10】 设 f (x)是以 2 为周期的连续函数,证明函数 x 2 G(x) = 2 f (t)dt − x f (t)dt 也是以 2 为周期的周期函数. 0 0 %o*** fitiat 2)( fit) at LEDA GIx 2) 2 (x + : + = - 2/dt-X1 2 fit) fitidt fa = at + - t D - - - 2 fitidt G(x) + at - 2 = GIN) = FEA ! GI E-G2 in
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  1. CONNECT:[ UseTime:0.000535s ] mysql:host=127.0.0.1;port=3306;dbname=wenku;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000716s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000276s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000239s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000472s ]
  6. SELECT * FROM `set` [ RunTime:0.000195s ]
  7. SHOW FULL COLUMNS FROM `wendang` [ RunTime:0.000546s ]
  8. SELECT * FROM `wendang` WHERE `id` = 327452 LIMIT 1 [ RunTime:0.000388s ]
  9. UPDATE `wendang` SET `liulancishu` = 3 WHERE `id` = 327452 [ RunTime:0.001620s ]
  10. UPDATE `wendang` SET `lasttime` = 1772093468 WHERE `id` = 327452 [ RunTime:0.000483s ]
  11. SELECT * FROM `wendang` WHERE `id` < 327452 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000496s ]
  12. SELECT * FROM `wendang` WHERE `id` > 327452 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000567s ]
  13. SELECT * FROM `wendang` WHERE `id` <> 327452 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001021s ]
  14. SELECT * FROM `wendang` WHERE `id` <> 327452 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000920s ]
  15. SELECT * FROM `wendang` WHERE `id` <> 327452 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001603s ]
0.077175s