数I正弦定理・余弦定理の問題です。 (1)のa:bなのですが、水色マーカーでかこった部分でどこが間違っているのかが分かりません。 解説をお願いします。

33 正弦定理・余弦定理 (2) B 465 △ABCにおいて,次のものを求めよ。 ①1 A:B:C=2:37 のとき A,B,C, a:b *(2) sinA:sinB:sinC=√3:17:4のとき B :77:

This is a present which Ken gave me. この文のwhich て必要ですか？

なぜsinθとconθになるのですか？

F₂ 2 力のつりあいと分解 y Fisimo 日 Fi coso F 3 F1 X

この問題のやり方教えてください あと最後のaⁿ=bⁿ+3/1のときどうして-が消えるんですか??

JE よって,数列{bn} は初項 1272,公比 -2 SIM 3 出の等比数列であるから bn=12/23(-2)-1/23(-2)" (–2)”—1 したがって an=bn+1/1/3=1/31(1-(-2)^} E S

至急お願いしたいです。 全く分かりません。

Vocabulary Preview Match each word with a definition by drawing a line between them. **** 1. methane 2. undergo 3. fluctuate for 4. current 5. eruption 6. orbit 7. consequence 8. balance • (a) an explosion from a volcano . (b) a gas that is used as a fuel lib. (c) to give something up ofbelastb. (d) to do with the present time . (e) a curved path around a planet 9. contentious 151 • font-lo (f) causing disagreement . 416 . (g) to consider the importance of two things appropriately . work bas ron of been ensibilib . (h) to move up and down EVED . Seei opinsino (i) the result of an action or process 10. relinquish notiformedbr. (j) to experience something Too Hot t

すいませんオレンジで書いた所はあっているでしょうか?答えがないのでお願いします🙇

Exercises ✪ Fill in the blanks and complete the conversations. 1. A: 1 want to be a good soccer player like you. Could you give me advice? B: I think it is any patie every day. (あなたが毎日練習することが大切だ) 2. A: I thought you went to the park to play baseball. B: 1 decided_NOTTO 40 (行かないことにした because I have a lot of homework. 3. (Talk about things you are good at and bad at by following the example.) Example: It is easy for me to play the piano because I took piano lessons for ten years. On the other hand, it is difficult for me to play the guitar. 2 Fill in the blanks and complete the conversations. 1. A: Yuka speaks French very well, doesn't she? B: That's right. She seems in France. [ study] 2. A: He said he had nothing to do with the case. What do you think? B: I doubt it. He seemed something about the case. [know] 3. (Your friend Naoki looks pale. Say something to him by following the example.) Example: You sick. You should leave school early today. to be appear very

下の青マーカーで囲んだ所がなぜこう言えるのか、教えてください！

例題241 定積分で表された関数の極値 関数f(x)=S_(212-3t+1)dt の極大値と極小値とそのときのxの値 を求めよ. 14+ $50 (4(z) (久留米大) axSog(t)dt=g(x) を利用して、与式の両辺をxについて微分すると, f'(x)=2x2-3x+1 2 d--a s-an 2006 ■解答 f(x)=_(212-3t+1)dt の両辺をxについて微分すると, [考え方 となる. ✔ f'(x)=2x2-3x+1=(x-1)(2x-1) (大阪) f'(x)=0 とすると, x=1, 2 したがって, f(x) の増減表は次のようになる. 1 x f'(x) + 0万円 f(x) > 極大 1 2 Focus) したがって, 極大値はx=- x=1/2のときで、 √ ( ² ) = ² · ( ² ) ² - ² · ( 2 ) ² + + 3 2 2 +530505>>t Ja -0+00E30 SIM 極小 ZEC, f(x)=√x (2²²-3t+1)dt =²l²^ "(-(0)² ‚§. f(x) を求める. 232 19 2 6 1x = [ ²3 1³ -³ 1² + 1₁ = ²3² x ²-3x²+x+ -1 6 あり(1027 よって、x=1/2のとき,極大値 x=1のとき, 極小値 (1)AJNO 2 1 19 27 + + 2 6 8 19 (x) 極小値は x=1のときで,等しい長方形の高さを f(1)=1/2313-1212312+1+10=10 (2) となるか ・13- ・1+1+- 10 3 (8)より、 *** 微分して増減表を作 る. (x)p (める. Juca th(x+1)+th(fn+°t)=(x) LA off(t)dt=f(x) f(t)dt xで微分する十分 d 極大値、極小値を求 31 第7章

すいませんオレンジで書いた所はあっているでしょうか?答えがないのでお願いします🙇

4. Jack seemed [appeared] to Exercises → Fill in the blanks and complete the conversations. 1. A: 1 want to be a good soccer player like you. Could you give me advice? B: I think it is every day. (あなたが毎日練習することが大切だ) 2. A: I thought you went to the park to play baseball. B: 1 decided (行かないことにした because I have a lot of homework. 3. (Talk about things you are good at and bad at by following the example.) Example: It is easy for me to play the piano because I took piano lessons for ten years. On the other hand, it is difficult for me to play the guitar. 2 Fill in the blanks and complete the conversations. 1. A: Yuka speaks French very well, doesn't she? B: That's right. She seems studied in France. [ study] 2. A: He said he had nothing to do with the case. What do you think? B: I doubt it. He seemed something about the case. [know] 3. (Your friend Naoki looks pale. Say something to him by following the example.) Example: You appear to be very sick. You should leave school early today.

Scramble 問題集 STEP2〜発展の答えを教えていただきたいです！

STEP 2 重要 問題 1 only a few 空所に入る最も適切な語(句) を選びなさい。 5は誤りのある箇所を選 び,正しく直しなさい。 5 1 She fell ( 4 asleep □□ 2 During the difficult math class, the student sometimes felt ( ② boring 3 bore ④ bores ① bored ① sleeping 3Iwas ( ① surprised ) over a book. ② sleepy ④ be surprised 3 sleep ) to see a stranger on the corner. ② be surprising 5 surprise 4 You need to answer all these questions. 20 It is ( 1 necessary 3 surprisesnitessuti (1) )for you to answer all these questions. ② necessity CHALLENGE 1は( 発展 選び、正しく直しなさい。 3 need voorlw 4 necessarily elunim wo di m正しい形 10 ( sidized asens ). □□ 1 急いでまとまったお金を入手しなければならなかった。 I had to (a / get / large / of / quite/sum) money fast. sida (福島大) settlers had to ③ cut down ③ a big number of trees before they could 2 plant their crops. ⑤ 誤りなし (早稲田大) 誤りのある個所 (東海大) (九州産業大) (東洋大) )内の語を正しく並べ替えなさい。 2~4は誤りのある箇所を ① ATO y to sidoque ital (四天王寺国際仏教大)

なぜ🟰2になるのかが分かりません💦 教えてください🙇‍♀️

○ △ABCの外接円の半径をRとする。 このとき,次の問いに答えよ ① a=5,A=30℃, B=135℃のとき, bとR を求めよ。 ② a=√2,R=1, B=60℃のとき, bとAを求めよ。 b Sin35 5 [Sin300] [より] 5 6 = sin 135 xzin300 ====5 ZR = sino¹ dy R = b simbo+ =2R=2>₁₂ Sin60 A A DOUA R=2013/103=5 2 sin30 b= 2-sin60° = 2 = √3 SinAR=2より sinA = 1/2/² = √/12/² A=45,135. B=60° より A=45° A ¥600 B b B5