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Mathematics Senior High

例題54と、429の解き方が異なるのはなぜですか? 2枚目が429の答えです

ーー .依証、、 敵数の増減を利用 した不等式の証明 。 レジ21のときり 次の不等式が成り立つこ とを証明せよょ. 4放っ3ァ十17 4 ) 1 上oo TKR5s5s5s5swswiirommm .108 要項 「不等式への応 AA とき, 万(z) は *=ヶ で常に増加する。 用」 2 を利用する。 ァ>oで刀(*)>0 の 8 したがって, (2)>0 ならば, *6 のとき (*)>刀(2)>0 5 (9=(e二4うー(3z十17) とすると (2%)ニタリ4x2ー3ァー17 1 SR ア(@)=3十8z一3ニ(ァ3)(3ァー1) したがって, *>2 のとき, (⑦>0 が常に成り立つから, 関数(9はco 常に増加する。 また7(2)ニ1 であるから, *ン2 において げ(⑦)>(2)=1>0 たがうて,。ァ>2 のとき 7ア(⑦e)>0 すなわちが"十4ZP>3z寺17 2 2 222%2く2000くく2くるの0《るのるくるののるのるののるるののるののののるるののの④⑳④の2224る69994999%9%466460om」 *426 方程式ポー3%ー9x一6三0 が異なる 3 個の実数解をもつように, 定数< の範囲を定めよ。 ME 427 。は定数とする。次の方程式の異なる実数解の個数を調べよ。 EIDH 本還請2L6xgー0 昌明4 4ん*ー]2ァ"上gニ0 5 6 428 関数ター2**ー9z?二10z のグラフと直線 yニー2x十 が異なる 3点で8 ように, 定数 ? の値の範囲を定めよ。 、/ "429 =0のとき, 不等式 2 =2 が成り立つことを証明せよ。 ゅ園p99 応財時 430 不等式 >4一4ヶ?十28>0 が成り立つことを証明せ 上 。

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English Senior High

わからないです

[5 次の英文を読み。 以下の設問に答えよ。 (配点 60点 xtenSiVe を て of your Your dog's ability to learn new tricks may be less a product 7aining (han of ther underlying *genetics ch as aral traits such Among 101 dog *breeds, scientists found that certain behavioral 0 genetically Sirmila 00Gr or Aproasion were more HMI GR PE時昌汗EE 2 S dog behaviors breeds、 While past studies have looked into the genetic foundations of ・the 2ceeg7zzgs の 7@ for certain breeds、thiS research published October 1 in *the /ァの preeds and find a な is the first to investigate a wide diversity of netic signal behavioral aly。 everyone knows that different dogs have 中作erent : の 7ashington in ~ says Noah Snyder-Mackler, a geneticist at the University of Washing Ks の Sa *canines have lived de "But we didnt know how much or why.” Humans and *canine at least 15.000 years. But only within the last 300 years or so have produced Yarieties such as Chihuahuas and Great Danes. Snyder-Mackler and his colleagues considered how 101 dog breeds behave while searching for genetic similarities among breeds sharing certain personality graits. Data came from two dog genotype databases and from C-BARQ, a survey 好at asks owners to rank their pure-bred dog's "propensity for certain behaviors, hike chasing or aggressiveness toward strangers. As a result the study didnt have genetic and behavioral data from the same canine individuals, which could help 岳ghjjght rare genetic varjants that may be nonetheless important to diversity im pehavjors. “Tjeyre not perfect sources of data” says Clive Wynne, an animal behaviorist at Arizona State Unjversity jn Tempe, who was not involved in the study. “But allowed fhem to Jook at ots and lots of dogs.” Using daa from over 14000 dogs described in C-BARQ, the researchers gave each breed a score for 14 different behaviors, and then searched for overall genetic simlarifies among breeds that had similar Scores. For traits such as aggression foward sfrangers, franability and chasing, the researchers found that genes ルー Yo

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English Senior High

教えてください!

Q&A Section 1 1. Is rocket fnel safe2 2. What js the second problem2 3 5 8 3 What would passengers ride on to g0 into space in the future2ョまァ Section 2 1. Are the contests for a “chimber" held Only in JaDan 2クラィッーのニンテトはでどけ行わるてい 2 Where do researchers plan to place the satellite2。==。 ニュン こしキラ ていまイク う How wl the satelite look from the earth2 』aagese シェラビ Section 3 1. W the cable be extended beyond the satellite2ァーアほんょなときえービミのますある 2. Have scientists already found the right material for the cable2。=s=zcmeーンzoegeocニティー 3. What makes a space elevator realistiC2とぅ しーァニニレーお却和5=なっているのですッ Section 4 2. What can we send from the satellite2んエをみち作を字ることができますかっ 3. What will more and more people be doing in the next generatiO 2===<=ェyz<ozaee= creッャシィ| 天この課のまとめとなるように、( ) 内に入る語を書き入れましょ う。 Rockets have some problems: for example. the possibihty of an (① ). Aspace elevator is another idea to gointo (② ) It would ran between a satelhite and the (③ り: A*《⑥⑨ テア wl take you to the satellite, which is 36.000 km (⑤ ) the earth. Acable willbe extended (⑤ ) the sateliite. An extra (② ) willbeput atthe endofit. Carbon nanotubes will be used for the cable. There are st some (⑨ ) in baildmg a space eleyator But we can expect some ⑮ ) from it We wl have easier access to the Zero ( ) enyironment. It will help ns new (⑥⑪ ). and more peoplewlbe (@ ) outer space mm the future @② ⑨ @ @ @ @W ぶ 旬

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