bài giảng sự đồng biến, nghịch biến của hàm số giáo viên phúc an

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bài giảng sự đồng biến, nghịch biến của hàm số giáo viên phúc an

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(SGK) J;<;6$ Q#KZ$. (& J;<<6 $Q#K!Z$. (& 6-7&80N- 8J45 8J89 46& 45 [  *  6  1(/  \& (7] T./ 9:1;( !"# 2. Tính đơn điệu và dấu của đạo hàm: x O y x O y F^P!−@F^! P −P! 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PA− −  8#2 8#. t0$N6F6& tL1!"6&6 t4226&$N6F6&= w6<> t42#21!"6& 6I<?R6?=6>P txM'6-2* .3.$N6F6&  6-7&8</\T61(y94Q]T+6z+/!g!\Ah! h P π ] 8#2 8#. 46& 01(m $6z+E + Q&.* t8?i2' I<? & _"\!]^!t!!. <?..$<!∈ Ar P π   ÷     )/{\!]^ P ! A≥  x∀ ∈ Ar P π   ÷     f\!]^AU-!^A =1(\1( 6&] 0Z%,& $%1*6z+ E+ ;6$ Ar P π   ÷    ⇒ \!]g\A]^A3∀!∈ 0; 2 π    ÷   $%&=S(.(!"';63<6 p(7';63<6-+# J0 '"()* 8.61(C>$@@\94Q]390 ttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt

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