172.3 これでも大丈夫ですか？？

さい。 去。 ろえ -) g53 基本例題112 対数の表現 (1) 10g23=a, log35=6のとき, log210と1015 40 を a b で表せ。 1 logx b= log.xc= のとき, 10gabcxの値を求めよ。 8' 24 ga=1 (2) 10gxa= 1 3' (3) a,b,c を1でない正の数とし, 10gab=a, log.c=β, logca=y とする。 1 1 このとき, ab+By+ya=-+ + が成り立つことを証明せよ。 a B 指針 (1) 10,15, 40 をそれぞれ 分解して, 2, 3,5の積で表すことを考える。 (2) 10gabcx= logx abc (3) 右辺を通分すると, 分母に aβy が現れる。 これを計算してみる。 363510 1 また 解答 The Parent (1) log2 10=log2 (2-5) = log₂2+log25=1+log25 ここで よって log2 10 log₂ (2.5)=1+log₂5 底の変換公式を利用して, 10g25 をa, b で表す。 また 10g 15 40 は, 真数 40=5・2° に着目して,2を底とする対数で表す。 である。 10gxabcの値を求める。 1 log35 log32 log210=1+ab |_log25= log1540= == + 1/3 + a = r -= log₂3.log35=ab RETS S00 log2 40 log215 (2) ab+3 ab+3 a+ab a(b+1) = (2) logxabc=logxa+logxb+logxc= よって logabc X= 1 aβ+βy+ya...... ① aby log2 (5.2³) log2 (3.5) 1 logxabc a log25+3 Puiglog23+10g25 =2 aby=loga blogb clogca=logab. 1+1+1/0 であるから、①より したがって,等式は証明された。 1 1 1 + + 3 11 24 8 10gac.. loga blogac 1 2 cal =1 00000 [名城大] =aβ+βy+ya が成り立つ。 aduto 1 log32= log23 前ページ検討も参照。 ( 10g25 = ab (前半から) log■ [久留米大] (3) 別解 基本171 したがって (左辺) log 1 aβ=logablog.c=logac 同様に βy=10gba Ya=logcb =logac+loga+logcb 1 1 + + Y a B 練習 (1) 10g2=a, logs4=6とするとき, log158 をa, bを用いて表せ。 ③172 でない正の数とし, A=logza, Blog2 bとする。 a, bが 2=-1、ab=1を満たすとき, A, B の値を求めよ。 芝浦工大 (2)類 京都産大] (p.272 EX110 269 5章 30 対数とその性質

大学受験の長文問題です。 解答がないので答えをお願いします🙏

問題 3 以下の英文を読んで、次の問いに答えなさい。 (*のついた語には語注が ある。) If you are able to step outside and hear many types of birds, you might also have a greater feeling of well-being. Two studies show that hearing diverse birdsongs may help increase our happiness. (A) One study was done by researchers at California Polytechnic State University. A research team studied the effects of birdsong ( 1 ) people walking through a park in the U.S. state of Colorado. A biology graduate student, Danielle Ferraro, led the study. "There could be an evolutionary reason why we like birdsong so much. And the idea is that when we hear birdsong it could signal safety to us," Ferraro says. There could be many other reasons, too. Ferraro states that in some areas around the world birdsong can also signal the arrival of spring and nice weather. Bird diversity, she adds, can also mean a healthy environment. She explained her study to Voice of America (VOA). Ferraro and her team played recorded songs from a diverse group of birds native to the area. They did this on hiking trails in a park in Boulder, Colorado. (2) several weeks, the researchers played recorded birdsong at certain times of the day and other times they did not. Then they talked with hikers after they ( 3 ). Hikers who heard the recorded diverse birdsongs reported a greater sense of well-being than the people who heard simply the natural birds. The researchers suggest that both the bird sounds and biodiversity* can increase feelings of well-being. Ferraro explained that she used native birdsong for the study. This way it would sound as natural as possible. They also did the study during the summer. She explains why this is important. "So the study ( 4 ) in the summer and that's kind of important because the spring is most birds' breeding* season. And if we play the birdsong during breeding season, that might have disturbed them. (B) We didn't want to disturb the birds too much." The study was published in an academic journal called the Royal Society B in December 2020. - 10- ◇M2 (310-15)

1枚目の訳と問いの答えって合っていますか？💦

(2)What is happening in current fashion trends? 訳:現在のファッションの流行では何が 起こっているのか? The distinction between men and women is vanishing.

1枚目の訳と、問いの答えってあっていますか？💦

(2)What is happening in current fashion trends? 訳:現在のファッションの流行では何が 起こっているのか? The distinction between men and women is vanishing.

it also has a good explanation in which the ideas are sketched out so that we humans can feel our way through the ideas as well as unders... 続きを読む

(8)ってどうして2じゃだめなんですか？ ただの完了形とbeenがはいったときのちがいがいまいちわかりません

) asleep. But outside factors can influence LIU (6) ( Among such factors are diet, stress and (7)( ) to light. Rhythms ✓ set by the body's internal clock naturally flow like tides of the ocean. For example, body temperature is lowest around 4 a.m. and highest around 7 p.m. ) in the evening than in the Occur Interestingly, more world records (8)( morning. And research has shown that many athletes perform best in the intern: afternoon or evening - near the peak of body temperature. influer tide (1) prepared preparing 3 are preparing 4 prepare intere predicta circadia rhythm biologic

黄色所の直訳教えてほしいです

[英文] A trophic cascade is an ecological process which starts at the top of the food chain and tumbles all the way down to the bottom, and the classic example is what happened in the Yellowstone National Park in the United States when wolves were reintroduced in 1995.

マーカーをひいてる文の最後のtoはどういう意味ですか？

someone comes around. It looks like the robot is asking for help. Amazingly, in an G2 experiment at a kindergarten, children naturally began helping the robot. The children started putting trash in it, even though G1 10 they hadn't been told to. So people are happy to throw garbage in a bin to help someone, even though the trash is not theirs. In conclusion, instead of forcing people to change their behavior, it's much more effective to take a psychological approach. That will surely make them keep their environment 15 clean. Don't nag at people; nudge them. C 0

もし、自分が無人島に行ったら、という課題なのですが、文法ミスがないでしょうか？わかる方助けて下さい！よろしくお願いします!

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和文英訳についてです。 2枚目が私の回答です。添削お願いします😭

3. 日本では長い間,教育とは知識を詰め込むことだと考えられてきたため,生徒たち は,なんでも丸暗記するのは巧みになったようだが,どうやら論理的思考は不得意に なり,意志決定の力もすっかり弱くなったようだ。