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数学 高校生

微分法・絶対値記号を含む関数のグラフ この写真の(検討)という部分の所が理解できません。 微分係数が無い、とはどういうことですか? 易しい解説をお願いしたいです。

月 204 y=-xxのグラフをかけ。 jos joll 絶対値記号を含む関数のグラフ y = 0 とすると のグラフは次の手順 メール)のグラフェスをより下の部分を主軸に関して 対称に折り返したグラフをかく。 ⑩ 絶対値 場合に分けるの方針なら、下の検討参照。 y=3x2-2x =x(3x-2) 手順でかく。 ラフを増減表を利用してかく。 ① とする。 2007 の増減表は右のようになる。 y= xのグラフは、①のグ イラクのy<0 の部分をx軸に関し て対称に折り返したものである。 よって、グラフは図の実線部分。 検討y' が存在しない点の極値 xx-1)であるから y=-(ピー) x y" + 0 y 20 [1] x<1のとき よって y=-3x+2x=3x(x-2/23) [極大] 0 2 3 0 + 極小 4 27 x J V ゆえに よって 0 00000 y=x-x" のグラフとx軸の 共有点のx座標は.y=0 と して x²-x²=0 x2(x-1)=0 x=0,1 A 0 ... 0 + 0 基本202 2 3 |極大] よって y=3x-2x=3x(x-2/3) 1 y=0 とすると x = 0, 01/23(x<1を満たす) x<1のとき、yの増減表は右のようになる。 [2]x=1のとき y=x²-x² x≧1のときy>0であるから x21では単調に増加する。 [1]. [2] から 上の解答の図のようなグラフが得られる。 なお、数学ⅢIで学ぶ内容であるが、場合の分かれ目であるx=1では微分係数が存在しない。 しかし、グラフからもわかるように 関数 y=lxx "はx=1で極小値をとる。 このように,y' が存在しない点で極値をとることがある。 319 6 3

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英語 高校生

なぜcanでは無いのですか?お願いします

words 1 /skin/ sékfon/ /tifu:/ míərm/ ases 1 ger A be necessary for you to give up any in in the near future. research studies G-A 2 Today, an incredible number been carried out all over the world this field. Scientists a working very hard and competing with one another to come u with faster and safer ways to create tissues such as skin from 3 At this point, one of the leading scientists in this area is D the patient's own body cells. a medica Yamanaka Shinya of Kyoto University. He was first doctor who treated back injuries, broken limbs, damaged joints and such. One day, he saw a woman with a serious disease in her joints. He was so shocked when he saw her swollen scientist. He misshapen joints that he decided to become a went into a basic study in order to find good ways to treat those ords 2 mpí:t/ ses 2 ther rds 3 crí:t/ Səri/ fm/ ant/ on/ on/ s 3 ch iPS Cells 1 If you have badly burned or red your skin, the doct may have to take a section of g skin from your back a Thanks to a growing however, it may no long medi sew it onto the injured area. technology called tissue engineeri: A w Wor sed R 6 The i and injuri damaged were ot 5 doctor very s into i they we 7 Dr 10 tissue cells u meth day t in th 15 Tho patients suffering from serious diseases and injuries. 4 One way to create tissue is to use egg cells, which have the ability to grow into any tissue in the body such as hair or muscle. This method, however, has produced a lot of debate. Many think it is wrong to treat live eggs as objects and then “kill them, even though the purpose is to treat patients. In addition people fear that this method could lead to human cloning. 5 For years, Dr. Yamanaka and his research team worked hard to find a different way to create tissue. Then, in 2007. they finally succeeded in creating heart muscle tissue from skin cells taken from a person's face. They first added four kinds of genes to the skin cells to put them back into their initial state, a state similar to egg cells. Then they made those cells grow into heart muscle tissue. The four genes they found are now called "Yamanaka Factors," and the initialized cells that can grow into any of the 200 cell types are called iPS cells. ma 20 on 18 th r 25時

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