Grade

Subject

Type of questions

English Senior High

この、Q𝗎𝖾𝗌𝗍𝗂𝗈𝗇のところが分からないので良かったら、教えてほしいです。

Lesson 12 In London, I happened to watch a TV program about a school for orphans and street children in Nairobi, Kenya, The children looked unhappy. I suddenly felt an urge to go to Kenya and paint something for those children. 7. be happy with ~ be satisfied G-3 It wasn't easy, but finally in 2006, I got to Kenya, found the school, and was able to paint for the children. I painted an angry dragon. I was happy with it, but a teacher complained, "The children are frightened by the dragon. Some of them refuse to come to school." The children thought that it was a big snake. They did not know that dragons are imaginary. with I asked them, "What would you like me to paint?" "Lions!" "Baobabs!" I asked the children to help me, and we had a lot of fun painting together. According to the teachers, the children became more active than before. 17. a turning point = a moment which changes one's life That was a turning point in my career. Creating happiness through painting in collaboration with others is my thing. I made up my mind to do a painting project every year in different parts of the world. 19. make up one's mind decide TO anoitaeno 1( ) 2() 3() orphan (5:rfən] Nairobi [nairóubi] Kenya [kénjǝ] urge [5:7d3) dragon [drægən] frighten [fráiten] refuse [rifjú:z] imaginary [imádzənèri] baobab [bérǝbæb] according (əkó:rdiŋ] turning [tá:rnin] career [kəriər] collaboration [kəlæbəréiſən] 1. happen to~ I happened to meet her on the train. 15. according to~ According to the newspaper, it's going to rain tomorrow. 18. in collaboration with ~ This building was designed in collaboration with several companies. G-3 This photo was taken by one of the most famous photographers in the world. 44 (diller A turning point in his career, Kenya Does this dragon look scary to you? EPE Lion Happy kids Questions Q-1 Why did some of the children refuse to come to school? Q-2 Who did Miyazaki ask for help with the painting? Q-3 "Creating happiness through painting in collaboration with others is my thing." "My thing" means a. my life's work. b. my painting technique. c. my favorite belongings. Your Reaction Suppose you are going to paint a picture for African children, what would you paint? 45

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Mathematics Senior High

この問題の青で囲った部分の、プラスマイナスはどうやって分かりますか? それぞれxの値をf'(x)に代入するのは分かるのですが、、この問題の場合aが入っていてこんがらがってしまいました💦

195 文字係数の方程式の実数解の個数 (2) 本 例題 00000 3次方程式x3ax+2=0) が実数解をただ1つもつように,定数aの値の 範囲を定めよ。 ただし,α>0とする。 [類 津田塾大] 基本 194 OLUTION CHART 3+2 2と変形してもy= のグラフは数学Ⅲの知識がないとかけない。 3x 3x よって, y=x-3ax+2のグラフとx軸の共有点の個数を調べる。 ・・・・・・! f(x)=x-3ax+2 とするとき, y=f(x)のグラフとx軸の共有点が1個となる条件を 考えればよい。 f(x)=3x-3a=3(x2-a)=3(x+√a)(x-√a) x= -√a, √a f(x)=0 とすると x a va 増減表は右のようになるから、f(x) の f'(x) + 0 f(-√a)=2√a +2, 0 極大値は 極小値は f(x) 極大 f(√a) =-2a√a +2 ✓ 極小 y=f(x)のグラフとx軸の共有点が1個である条件は f(a) となることである。 (d)>0であるから, f(√a) > 0 となればよい。 極小 -2a+a+2>0 から ava < 1 すなわち α<1 >0 であるから 0<a<1 -√a INFORMATION 3次方程式 f(x)=0 の実数解の個数と極値 (f(x) の3次の係数が正の場合) [1] 実数解が1個のとき [2] 実数解が2個 [3] 実数解が 極値がともに正か負, のとき 3個のとき または極値なし。 極値の一方が 0 極値が異符号 Ni fin si Nish ph x a B x a B α f(a) f(B)>0 f(a) f(B)=0 f(x)f(B)<0 極大 293 x

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