（1）の答えの方で下線を引っ張ったところが分かりません。

506 第8章数 Check 例題 289 格子点の個数 解答 列 disol (E) を自然数とするとき, 次の条件を満たす整数の組(x,y) はいくつある tugal Staol 15coll Segol I-90 .sol.3.8.gol Sigol か. (1) p≤lyl≤2p, p≤lx|≤2p058 p²=Sagol (1) (2) x+2y≤2p, y≥0, x≥0TI «ĆÏUS?ĆU A U (学習院大改) (3) 0≤y≤500, 0≤x≤√y 4stor for 考え方 座標がすべて整数である点を格子点という. I=Dagal D-14gol (1),(2) 具体的な数を入れて考えてみるとよい。 たとえば, (2)では, YA p=1 1 20 p=2 1 2 XC 0 となり, p=1のとき, 1+3=4 gol 3 ここでは、与えられた条件を LLUS x 100_n. (3) 0≤x≤√y , (0≤) x²≤y x=p上にある格子点の個 数は, p=2 のとき, 1+3+5=9 p=3のとき, 1+3+5+7= 16 p=4 のとき, 1+3+5+7+9=25 (1) 領域は、 右の図のように, 1辺の長さかの正方形 4つ分 である. y 30 O 0≤y≤500, 0≤x≤√y ≤√500=10√5 = 22.4 より、 右の図のようになる. 0805=23-10- p=3 x=k上にある格子点の個数を考える. -2pi (x≥0 1x² ≤ y ≤500 と変形し 6 YA 3 2p P 0 -p -2p となっている. 10.2.0+81 HO 一般に,直線 y=k(k=p,-1, ..., 0) 上には,それぞれ1,3,5, …, (2p+1) 個の格子点が並んでいる. y p2px 3---(2,3) 0 2x YA 43 p=4 ... **** Hol CARDA g TERA 500円 aros-40-88- 0 p+1 カ - p, p+I 格子点 y=x² 22 x y=p, p+1, , 2p, -p, -p-1, ....... -2p の{2ヵ-(p-1)}×2=2 (p+1) (個) 同様にして, x=p, 2p, -p, -2p 上の格子点の個数は, それぞれ, 2(p+1) 個(エ+s線の数は2(p+1) 本 KERARU |x=p上の格子点の個 数は2(+1) 個 −ħ5, x=p, .···.··., 2p, 2pの直

(3)と(8)のなぜそうなるかの解説お願いします🙏🏻 (3)の答えは(d)で、(8)の答えは(a)です

3. I was very tired. (a) had gone difer 4. If [ (a) not by hupr 5. [ to the party Otherwise, I [ (b) went ] I could speak English as fluently as you! (b) so (c) be (d) only ] a little more diligence, Dick might have succeeded. (c) Without (b) If (d) Had ] more difficult, I wouldn't have been able to solve it. (d) would have been (c) had been (c) would go (d) would have gone (a) With 6. If the problem [a] (a) was (b) were If I had had to do it instead of Eddy, I [ (a) would have done (b) will do 8. If he had taken my advice, he [ ] happier now. ansi modron al (d) (a) would be (b) will be (c) will have been (d) would have been al ] it right away. (c) will have done (d) would do TISO F

数学IIの三角関数の問題です。 なんで黄色のところと赤のところになるんでしょうか？ 詳しく教えて頂きたいです。

FOI REA 1 0≦2のとき, 方程式 sin 考え方 0 + π 3 0+- +1=t とおくと sint 3 = =t とおくと sint= 1/1/12 t = 5 6 すなわち 0 + in ( 0 + 7/3) = 1/2/2 を解け。 ISO<2のときた情 3 であるから,この範囲で①を解くと π, 13 6 t=1/1/2/2 π 7 3 である。tの値の範囲に注意する。 π 5 +1/6=1/11/23 よって -π, 9 π -1 67 0 1 1 2 13 兀 = F 11 22 1121 1x π =13 6

この空欄に共通語を入れないといけないんですけど分からないのでよろしければ全部じゃなくても良いので手伝っていただきたいです💦

(3) (a) We must keep an ( ) on the political situation. (b) She hit him hard and gave him a black ( ). (4) (a) This is going to cost you a good ( ) of money. (b) In this African town, there are many merchants who ) in diamonds. (5) (a) That politician always takes a strong () on difficult social issues (b) He was so shocked by the news that he could hardly ( ) up. (6) (a) Why are you sitting so far ( ) from us? Come over here and join us. (b) The two brothers look so much alike that it is difficult to tell them ( ). (c) The dog has pulled the newspaper ( ) again! (d) I don't like to mix business with pleasure, but try to keep the two things firmly ( ). (8) (a) In my ( ) you should try the exam again. (b) The ( uldn't got (7) (a) () all his campaigning, he couldn't get enough votes to win. (b) It might be better for us to make allowance ( ) his inexperience because he is a newcomer. (9) (a) You will be sure to like him, ( ) you talk with him. (b) He writes a letter ( ) in a while, but not so often. The earth goes around the sun ( ) a year of 251) (10) (a) A( ) from the mountain top was spectacular. ) is a place where you can get water. (b) The doctor said that he would be ( (11) (a) Will you ( 15 (c) He has knowledge and experience as ( ). ) if he took this medicine. ) after the children while I'm out? in the long run 結局は (b) ( ) in the mirror before you drive off

[化学] 何方かアンモニア水の捨て方についてご存知の方いらっしゃいますでしょうか?? (DAISOで売られているアンモニアの吸熱実験キットです⚗️)

それぞれの「question」と「内容を確認しよう」の 回答を教えてください

sibel mont nem s tem ◎区切りごとに意味をとりながら、 音読しよう。 #terronta ri pailover™ WEDDELANOJ MESOS FRITIO Receiving help from many people, / I was able to travel around the MO1911 ent of 90 926 0 on BW 911 world. // I noticed that kind people did not hesitate to speak to +of+/ cleost 14 roof denone + sibal mort nem is to A Reflection on My Trip someone / in trouble. // JOLL 100 H ® Let's imagine / that you are on a niedbloodw ym ai qu 9m borriso vedi nedT [+] 1 som gu VT185X. crowded train. // A passenger nearby ask, / "Are you OK?" // looks sick. // What will you do? // You may hesitate, / but I hope you aldsaib,blo How bas nem reddegot du no evil Ils 9W bise H boldsatb-non bag It is important that you have the courage / to 201 SAMOILANG NEL CA 33tal W med AHOR talk to people. // ® I believe that this courage can change the world. // na e que JLO Ils W As I experienced during my trip, / "barrier-free" is not only about facilities, / but also about people's mindset. // Anyone can contribute / to creating a barrier-free society. //qe seved oviM bib 99991 at vi ed al (15OX FNACZ

教えてください

After World War II, people in Okinawa were suffering ( P ) hunger. Therefore, Uchinanchu in Hawaii decided to send 550 pigs to Okinawa and the pigs saved many people's lives there. About sixty years later, the members of BEGIN were impressed by this episode in history. So, they decided to send the same number of musical instruments as the pigs to Hawaii. The band hopes their presents will deepen the relationship between Hawaii and Okinawa for many more years.

教えてください

After World War II, people in Okinawa were suffering ( P ) hunger. Therefore, Uchinanchu in Hawaii decided to send 550 pigs to Okinawa and the pigs saved many people's lives there. About sixty years later, the members of BEGIN were impressed by this episode in history. So, they decided to send the same number of musical instruments as the pigs to Hawaii. The band hopes their presents will deepen the relationship between Hawaii and Okinawa for many more years.

教えてください

After World War II, people in Okinawa were suffering ( P ) hunger. Therefore, Uchinanchu in Hawaii decided to send 550 pigs to Okinawa and the pigs saved many people's lives there. About sixty years later, the members of BEGIN were impressed by this episode in history. So, they decided to send the same number of musical instruments as the pigs to Hawaii. The band hopes their presents will deepen the relationship between Hawaii and Okinawa for many more years.

教えてください

After World War II, people in Okinawa were suffering ( P ) hunger. Therefore, Uchinanchu in Hawaii decided to send 550 pigs to Okinawa and the pigs saved many people's lives there. About sixty years later, the members of BEGIN were impressed by this episode in history. So, they decided to send the same number of musical instruments as the pigs to Hawaii. The band hopes their presents will deepen the relationship between Hawaii and Okinawa for many more years.