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数学 高校生

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y 。 次の2次関数の最大値または最小値を求めよ。また、その時のxの2 次の関数の最大値と最小値を求めなさい。また、 その時のxの値 値を求めよ、 (1) y=x?-4x+7 を求めなさい。 (1) y=x?-8x+11 (3Sx57) = (x -4) -4° +1 最大値なし =(x -2)-4+7 =<x-2)+3 #マo7 = X 最小値3 こ 全?0E= X 4= (3 -4)-5 2 oL=X (2) y=ーx-3x+5 最大値4 x ==3のとき 最大値 14 最小値なし S-{1-)= S-1 ニ *= 4のとき 最小値 -5 S+ と+ - ミ bー= 3=(7-4) -5 =?0L= X (3) y=-2x?-4x+1 = -2 (x +2^)+1 S- (E) = 5-b = b= (2) y=-x?-2x-3 (0Sx<2) * = - |のとき 最大値3 ミ -2(々+1)。+2+1 ニ -2<a+)*+3 ミ- (»て+。x) ミ- 1-.(1+x) 最小値なし ー こ (4) y=3x?-2xー1 キ307 - X = 3 (ペー言の)-1 リ- ¥ とマ o 0 こX y=-(o+リ-2 最小値ない 1-。(チーと) e = X=すのとき 最大値 -等 最小値 -2 全?0 - = = 3(^-)-番 こ-.())- - こ-|- = JxAs_ E- = (5) y=x?+6x+2 =(«+3)-3°+2 =(x+3)-9+2 - (^+シ)ーク 年3 0て= X 4= -(2+1)^-2 最値なし ミ - <3)-2 最大値 -7 よス0E- =X こ- b- = 1- = X=号のとき 最大値- - (6) y=ーx?+x+1 (3) y=x?-3x+1 (-2<x<1) -(こ) まャき(-) = キ(チ)。 子ー=X 最大値 最小値なし 全?0Z- - X% 「*ー(子+) キキ子さ)- - まャ(チ**)- - D =?0 C- - > ミ= (-2-)-是 (7) y=-2x°+4x-3 = -2 (x*-2^)-3 = -2(x-1):-P -3 - -2 C^-1 )+2-3 X = |のとき 最大値 -) 最小値なし き -( )- チ-(そ)= キー-) き-() き-キ キーま

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英語 高校生

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Date /32 13 LESSON D Choose the best answer to fill in the blanks. (各1点) )audience at the movie theater. 3 many (1) There was ( much Dalarge 2 large ) fire. 2 Always keep a bucket of water handy, ( 1unless ④ ready on 3 to prepare (2 in case of ) has become a bestselle, 3 My teacher recommended several books to the class, ( 2 which 4 one of which 3 one of that D that (4) As I had a bad cold, I was made ( 1 take ) the bitter medicine against my will. の taking 3 be taken (千葉工す。 2 to take (5) Someone hit me on ( ) head. 3 the の his (四天王寺国際仏町 Da (2 an (6) The picture is said ( O having been drawn ) just before he died. 2 to be drawn 3 to have been drawn の to have drawn (7) I am sure ) coming to the party. O not his 2 his not 3 of his not ④ of not his (松」 (8) The girl ( ) sweet voice John loves is a good singer. Owho 2what 3 which のwhose (大阪に (9) It is only 6 o'clock in the morning. She ( ) at this time. O may still asleep 3 may be sleeping 2 might have been sleeping O might still asleep (福 00 To begin ( ), you must buy an admission ticket. D at 2 on 3 with ④ from (11) This restaurant is ( ) nicer than the one I visited last week. 1 more 2 too 3 as の far 12) ) that such a thing would happen to all of the guests staying at the hotC。 O Little did I dream ② Little dream did I 3 Little I did dream O Little dream I did 12) Some of the milk turned sour before it reached the market and( 1 must throw ) away. 2 have to be thrown 3 had to throw O had to be thrown 50

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