この問題の答え、-sin2xの1個上の答えで止めてもマルですか？

2 ②y = cos² y' = 2 cosx· (-sink) - sin2x.

The book is very interesting. Merely borrowing it through it is not enough. 訳：その本は非常に面白い。単に借りるだけでは不十分だ。 ここのthroughはどういう訳し方をしたのですか？

But Ms. Reese continued to employ all five of her staff and work with clients outside the shop. 訳:しかしReeseさんは5人の従業員を雇い続け、店の外で顧客へサービスを提供し... Read More

英検2級英作文 添削お願い致します🙇‍♀️ 字が汚くてすみません💦

71501 19 11 Yes, I think so. I have two reasons. First, It is nice to protect environment. Today, there are many environment problems, such as global warming, water pollution. So, we have to create environmentaly friendly products and services. Second, environment thing for all people. Everyone has relationship with it. Then, we must solve this problem together. It will hard to do it alone, but if we help each other, we will success. Therefore, I hope that many people work for companies that create environmentally friendly products services. and

解説お願いします。 この式はどのように式変形したのか教えてほしいです。 よろしくお願いします。

fn+2=fn+1+2fn.を取り除い - fn+2−2fn+1= − (fn+1-2fn).

記述で｢aとbは互いに素｣と書いたら｢aとbは自然数｣ということを含みますか？

このカッコ2にはhelped cause the situationが入りますが、カッコ前のruns itは何ですか？どんな文構造なんですか？

the over the next 20 years. According to the PCRM, the National School Lunch Program (NSLP) and the United States Department of Agriculture (USDA) that runs it (2 ). In 1946, to support America's farmers, the USDA agreed to buy hundreds of thousands of dollars worth of agricultural products year most of which was animel

【至急！】 なぜ上の式が下の式に変形されるのかを教えて欲しいです😭

(+2)(+3)(+4){2(4+1} a = (1+2) (+3) ($+4).... • 2(2+1)+2(x+1)

助動詞「まし」のためらいの意志のときの比較、選択の文脈とは具体的にどう言うことですか

この木なからましかばのましかは、なぜ反実仮想で、希望ではないんですか