?の部分でなぜsin^2になるのですか、？

x>1におい よって、 1<a<c<bのとき f'(a)<fle ゆえに -=f'(c)(b-a) log b log a [I 31-e³ すな "dz=n 薬 23定積分 Example 23 ***** 自然数nに対し, In = cosxdx とするとき, 次の問いに答えよ。 (1)とそれぞれ求めよ。 (2) 自然数nに対し, In+2 を In で表せ。 (3) Ig で表せ。 [21 岩手大] ★★★★★ 119 次の定積 (1) S sin' (3) Soext- (5)Sill0g ME (1) = "" cosxdx-sinx=1 (1+cos2x)dx 1- cos'x dx=(1+cos =1/2x+1/12/sin2x=4 (2) In+2=2COS+2xdx=2(sinx)' cos”+1xdx [★★★★☆] 120α, B は となるの 121 (1) m (2)不定 (3) n Key 部分積分法によ ★★☆★☆★ =sinxcos**x] +(n+1) sin®x cosxdx り, In+2 を計算すると In, In+2 が現れる。 I =(n+1)(1-cos x) cos"x dx =(n+1)(In-In+2) よって したがって (n+2)In+2=(n+1)In In+2=n+1In (3)(2)の結果を用いると n+21 75 18=- = 86 256 よって π= 35 Key (2) の結果を繰り が成 (4)定 35 返し用いる。 -π 753 7.53 12= 864 8 6 4 4 256 Practice 23 ★★★☆☆ n=0, 1, 2, ...... に対し, In=Sxelaxdx とする。 (1)の値を求めよ。 (2)n≧1 のとき, In と In-1 の間に成り立つ関係式を求めよ。 (3) I3 の値を求めよ。 (4) JEB) *(sinxco (4)定積分 (sinxcosx) e3sinxdxの値を求めよ。 48 ++ VI ★☆★☆★ 122 ★★★☆☆ S 123 f (1) [類 19 摂南大〕

対角線BDの求め方教えてください！🙇🏻‍♀️答えは√5です！

* 1 ~ と (2), (2) は答えのみを解答欄に記入せよ。 それ以外は、 途中経過を詳しく記入すること。答えのみは不正解とする ① A(-1, -2), B(2,0), C(3,3), D(x, y) の4点を頂点とする四角形ABCD が平行四辺形であるように,xyの値を定めよ。 また, そのときの対角線 BD の長さを求めよ。 【知※各3】

(3)について質問です。sを求めるところまでは分かったのですがその後どうやってx,yを求めるのか分かりません💦どなたか教えてほしいです🙇🏻‍♀️

t=2のとき, ①は これを解くと すなわち s=1 s2-2s+1=0 (x, y) = (1,1) t=1のとき, ① は これを解くと s=0, -1 s2+s=0 すなわち (x, y)=(0, -1), (-1, 0) 以上から, 2x+3xy +2yは (x, y) = (1,1) で最大値 7, (x,y)=(0, -1, -1, 0)で最小値 -2 をとる。

Vision Quest Ⅰ の Lesson9-1 Try it out の①、②と Lesson9-2 Try it outの ① の答えが分かる方いたら教えてください！！

Try it 下の語を適切な形で( にいれて、 英文や会話を完成させましょう。 1. The boy ( ) the red T-shirt is John. Next to him is my brother Bob. 2. "I'm sorry to have kept you ( 3. Three days later, the police found the ( ) wallet at the second-hand shop. ) so long." "Don't worry about it." However, they were unable to find the money in it. 4. The photo ( ) from the window upstairs was really beautiful. I hope I can live in such a house one day. steal take/wait / wear 2()内の語句を並べかえて, 英文や会話を完成させましょう。 1. We saw (her the street/her car / across / parking). She must be here somewhere. 2. "Did you watch the baseball game yesterday?" "Yes. It (an/ was / game / exciting)." 3. "Don't you hear something?" "It is (falling/rain/on/the/ the roof)." 4. My father (valuable / his /watch/stolen/had). He was really careless. 5. I (with them talking each other / saw) for a long time. They seemed to have a serious argument. 6. It was windy last night. We (all the windows/keep/to/ had / locked).

Vision Quest Ⅰ の Lesson9-1 Try it out の①、②と Lesson9-2 Try it outの ① の答えが分かる方いたら教えてください！！

Try it ! vojas I woa ndalyasli ai si to tol a oodia neqat 下の語を適切な形で( )にいれて,英文や会話を完成させましょう。 boog a'd'T ST 1. The boy ( ) the red T-shirt is John. Next to him is my brother Bob. 2. "I'm sorry to have kept you ( so long." "Don't worry about it." ) wallet at the second-hand shop. 3. Three days later, the police found the ( However, they were unable to find the money in it. 4. The photo ( ) from the window upstairs was really beautiful. I hope I can live in such a house one day. mals aliup An steal take/wait / wear 2()内の語句を並べかえて, 英文や会話を完成させましょう。 1. We saw (her the street/her car / across / parking). She must be here somewhere. 2. "Did you watch the baseball game yesterday?" "Yes. It (an / was/game/exciting)." 3. “Don't you hear something?” “It is ( falling / rain / on the / the roof)." 4. My father (valuable / his /watch/ stolen / had). He was really careless. 5. I ( with / them / talking / each other saw) for a long time. They seemed to have a serious argument. 6. It was windy last night. We (all the windows/keep/to/ had / locked).

【不定積分・定積分】添付した画像のマーカーの引いてある部分です。atがなぜ消えるのか教えてくださいm(_ _)m

418 テーマ 定積分で表された関数 ca Del frio x Key Point [156] → f(x)=x2+2+xff(t)dt-Stf(t)dt から, 1 -1 S_f(t)at=a, Stf(t)dt=b とおくと (T) -1 f(x) =x2+ax+2-b よってf(t) dt 01 1 =S(t2+@t-2-b)dt =(*) Of =2√ (1² +2-b)dt 0 = 2√31/32 + (2 - b) t /1 -2(+2-6)=14-26 3 3 Stf(t)dt=t3+ at² +(2—b)t}dt == 2 1 0 = 1/a 3 at2dt=2 a <) 424 ゆえに 1/24 3 -2b=a, 2 a=b 3 4 これを解くとa=2,b=33 すると、 したがって f(x)=x2+2x+2/2 TS)

(C)に当てはまる単語を選び形を変えて入れる問題です。入る単語はlookで、回答はlooksでしたがなぜlookedがダメなのかが分かりません。理由を教えて欲しいです。

d times ir way in the early morning hours. Another concern has to do with the cost implications of delaying school start - an ever-present issue in the age of increasingly tight school budgets, and decreasing tax revenues. The move could lead to a range of initial up-front costs, with budget-watchers worried most ( 2 ) costs/associated with changing bus schedules and additional lighting for athletic fields because after-school activities would be pushed later in the day. However, our recently released research for the RAND Corporation ( B ) that delaying school start times to 8:30 a.m. could actually result in significant economic statewide benefits that would be realized within a matter of years. Over the span of about a decade, the United States could stand to make financial gains of around $83 billion if teenagers were able to get more sleep. In California alone the financial gains would be just over $10 billion. Within even two years, most states would break even in terms of the initial costs of the move versus the economic benefits. These gains are based on a macroeconomic model that ( C ) at two key effects of better-rested teens: improved academic performance and reduced motor vehicle crashes. In terms of academic performance, research published ( 3 ) the apt title

仮定法、過去完了辺りについて 私は had→have→過去→現在→未来 だと思ってるのですが この問題など後半はただの過去の分なのに hadになるのはどうしてですか？ 過去のさらに前に起きた話はhaveで haveのさらに前に起きた話はhadで 書くと思っていました... 続きを読む

1261文 231 I wish I ( ) that guy from Tokyo for his e-mail a 第9章 仮定法 231~233 127 last night. asked 2 had asked (3) was asking 4 would ask 231.S wish + S' + 動詞の過去完了形 (仮定法過去完了) W ? ○ 過去の事実の反対を想定しているので、 Swish (that) S' + 動詞の過去完了形... の形 になる(→230, TARGET 35)。 last night 「昨夜」に着目すること。 ASS の Plus ask A for Bは 「AをBにくれと頼む」。 begoist KEY POINT 069 KEY POINT 069 S would rather (that) S' + 仮定法 / If only + 仮定法

<p><strong>Online Nursing Class Course Design Principles</strong></p> <p>In the rapidly evolving landscape of education, online nursing ... 続きを読む

赤色の部分の式がどこから出てきたのか分からないので教えて欲しいです🙏 あと、両辺に1/√2k+1を加える理由という発想はどこからくるのかも教えて欲しいです🙇‍♀️

☆★☆★☆ 246 すべての自然数nに対して,不等式 1 + + 1 六十六方 3 √5 OPE √1 [大 が成り立つことを示せ。 1 √2n-1 ->√2n+1-1 とする。 PA-2との交点 とす [14 学習院大 ]