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Mathematics Senior High

88番です 複素数を使わない解き方を教えて欲しいです ヒントや解説を見ても分かりませんでした

X (2)等比数列{an) が α2 = -1 かつ 13無限級数 17 無限級数 基本問題&解法のポイント 1 n(n+2) の和を求めよ。 18 (1) x * 0 とする。 次の無限等比級数が収 束するためのxの値の範囲を求めよ。 2-x+ (2-x) (2-x) + 無限級数の和 部分和 Sm を求めて {s. を調べる。 lim S が収束す ば、その極値Sが和。 無限等比級数 24 arn 7=1 ① 収束条件は 1 を満たすとき、数列{a} の一般 a=0 または |r| a 3 ②和は 1-r 項を求めよ。 A *87 (1) 無限等比数列{a}がan=2a2=2を満たすとき,{a} の 比を求めよ。 n=1 (2) 次の無限級数の和は自然数となる。 その自然数を求めよ。 [18 1800 n=6 (n-5)(n-4)(n-1)n [22 88 無限級数(1/2) co 2 (12) cos 筈の和を求めよ。 COS *89 座標平面上の原点をP6(0, 0) と書く。点P1, P2, P3, (-1) 1 P(cos(sin(x) (n=0, 1. 2. COS 3 [2] 2 3 を満たすように定める。Pの座標を (x,y) (n=0, 1, 2,... とする (1) P1, P2の座標をそれぞれ求めよ。 28 (2) x, yn をそれぞれnを用いて表せ。 (3) 極限値 limxn, limyn をそれぞれ求めよ。 11 (4) ベクトル P2n-1P2+1の大きさをln(n=1, 2, 3, ......) とするとき、 を用いて表せ。 (5)(4)について, 無限級数の和Sを求めよ。 n=1

Unresolved Answers: 1
English Senior High

上から16行目位のofの後の^ には何か言葉が省略されているのかと思うのですが、何が省略されてるのでしょうか?

When we think about lives filled with meaning, we often focus on people whose grand contributions benefited humanity. Abraham Lincoln, Martin Luther King, Jr., and 壮な Nelson Mandela surely felt they had a worthwhile life. However, how about us ordinary people? Many scholars agree that a subjectively meaningful existence often boils down to 主観的に (a) three factors: the feeling that one's life is coherent and “makes sense,” the possession of clear and satisfying long-term goals, and the belief that one's life matters in the grand 信念 scheme of things. Psychologists call these three things coherence, purpose, and (1) existential mattering. 存在に関する な However, we believe that there is another element to consider. Think about the first butterfly you stop to admire after a long winter, or imagine the scenery on top of a hill after a fresh hike. Sometimes existence delivers us small moments of beauty. When S people are open to appreciating such experiences, these moments may enhance how they =4 view their life. We call this element experiential appreciation. The phenomenon reflects 感謝価値評価 the feeling of a deep connection to events as they occur and the ability to extract value 抽出する. V from that link. It represents the detection of and admiration for life's inherent beauty. 発 (b) 本来備わっている。 We recently set out to better understand this form of appreciation in a series of studies that involved more than 3,000 participants. Across these studies, we were interested in whether experiential appreciation was related to a person's sense of meaning even when we accounted for the effects of the classic trio of coherence, purpose, and existential mattering. If so, experiential appreciation could be a unique (c) contributor to meaningfulness and not simply a product of these other variables. 変数の産物 As an initial test of our idea, during the early stages of the COVID pandemic, we had participants rate to what extent they agreed with different coping strategies to 対処方法 relieve their stress. We found that people who managed stress by focusing on their Avent appreciation for life's beauty also reported experiencing life as highly meaningful. In 感謝 - 1 - 有意義

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English Senior High

(24)の答えがなぜ1になるか分からないです…

(24) The Tale of Mejk Swenekafew Recently, many people have been talking about "fake news" news reports that are untrue. However, such reports have been around for a long time. They are sometimes used in order to get more people to read newspapers, watch TV programs, or visit online news sites. People also use fake news to spread their political or religious beliefs. However, ( 24 ) publishing fake news. In 1903 in the city of Clarksburg, West Virginia, fake news was used to check/if newspaper was really writing its own articles. In the city, there were two rival newspapers, the Clarksburg Daily Telegram and the Clarksburg Daily News. The Daily Telegram's staff believed that the Daily News's reporters were ( 25 ). The Daily Telegram decided to check whether this was happening. It published a fake news story about a man who had been shot after an argument about a dog. The man's name was Mejk Swenekafew. Soon afterward, exactly the same news appeared in the Daily News. However, the reporters at the Daily News had not noticed that the name "Swenekafew" was actually "we fake news" written backward. They were forced to admit that they had copied the Daily Telegram's article. These days, there is more pressure than ever on newspapers, news programs, and news websites to get more readers, viewers, and visitors. In order to do so, they need to report big news stories as quickly as possible. ( 26 ), they are constantly watching each other to make sure they have the latest stories. However, they need to be careful not to do the same thing that the Clarksburg Daily News did. these are not the only reasons for many popular websites have been there are rules to stop people from some TV companies began by a

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