左と右は似たような問題だと思うのですが、z=x+yi とおいてとくときと、両辺を二乗してとくときの違いなどはありますでしょうか？🙇🏻‍♀️

例題 次の方程式を満たす点z 全体の集合は,どのような図形か。 6 2|z|=|z+3| 解答 方程式の両辺を2乗すると 4|z|=|z+3|2 よって 4zz=(z+3)(z+3) すなわち 4zz=(z+3)(z+3) z+3=z+3 右辺を展開して整理すると 22-2-2=3 式を変形すると (z-1)(x-1)=4 すなわち よって (z-1) (z-1)=4 z-1=z-1 |z-1|=22 したがって |z-1|=2 これは,点1を中心とする半径20円である。

下の画像のようになるのはなぜですか？🙇🏻‍♀️

2 √a^cos³ A = acoso /

That car mechanic can cope with any problem concerning cars. その自動車工は車に関するいかなる問題にも対処出来る。 このconcerning は何の用法なのでしょうか？🙇🏻‍♀️

There is a strong value on completing the decision making process independently of others. この文のmakingはどういう用法でどういう意味ですか？🙇🏻‍♀️

It is important that we understand and are aware of the ways people belonging to another culture communicate. このcommunicate は動詞ですか？名詞ですか？... Read More

People often talk about how the world is getting smaller and more connected. 世界がいかに小さくなり、よりつながりつつあるかについて人はよく口にする。 という文について、howの意味がどのように... Read More

赤線部についてwhat toが「どう〜か」という訳になっているのはなぜですか？🙇🏻‍♀️

40 テレビの子供への影響 179 words 1 Many people are concerned about what television has done to the generation of American children who have grown up watching it. For one thing, TV deprives children of creative imagination Some teachers feel that television has taken away the child's 5 ability to form mental pictures in his own mind, resulting in children who cannot figure out a simple story without visual illustrations. For another, too much TV too early tends to cause children to turn away from real life. As a result, they grow up to be passive spectators who can only respond to action, but not take 10 the initiative in doing anything. 2 Another area for concern is that children are short of tolerance for learning. They don't know what to do with some problems if it takes them too long to solve them, because they have been conditioned to see all problems solved in 30 or 60 minutes on TV 15 3 Television violence in particular has the most serious impact on children, most of whom get used to it and become incapable of 17 sympathizing with the pains of others. Tegala Jasd edited

左の赤線部はどういう用法になっていますでしょうか？🙇🏻‍♀️

words European, Every European knows that, in Europe, wealth could only be acquired at the expense of other human beings. To a money stands for the freedom to act at will, which also means that he says, "I want to have as much money as I can and others to have 5 as little money as possible." ? In the United States, wealth was also acquired by stealing, but the real victim was not other human beings but poor Mother Earth and her creatures The Indians were driven out, for they had never realized the potential riches of their country. 10 3 Thanks to the natural resources of the country, every American, Jailevon until quite recently, could look forward to making more money than his father, so that, if he made less money, the fault was his; he was either lazy or foolish. What Americans think much of is a man's power to make money. 154 And a rich American is proud of being able to make a financial contribution to a variety of things. In no society in history have rich men given away so large a part of their wealth. On the other 18 hand, a poor American feels guilty about being poor. 8

赤線のitというのは何を指しているのでしょうか🙇🏻‍♀️

200 words When a human infant comes into being in any community in any part of the world, it has two things in common with any other infant. First of all, newborn children are completely helpless Apart from a powerful capacity to draw attention to their 5 helplessness by using sound, there is nothing the newborn child can do to ensure his own survival, Without care from some other human being, be it mother or father, an infant is not liable to survive 2 This helplessness is characteristic of a human infant, and is in contrast with the capacity of many newborn animals to stand up 10 within minutes of birth. They don't even have difficulty running with the *herd within a few hours. Since young animals are certainly in danger, sometimes for weeks or even months after birth, compared with the human infant, they quickly develop the capacity to protect themselves. However, the human infant is in need of others for a is 15 very long time. During this long period, the human infant develops the second feature which it shares with all other human infants, the capacity to learn language. It goes without saying that language 18 specific to and indispensable to the *human race. (注) herd 「(同種の動物の) 群れ」 human race [ is

複素数平面において、x軸は実軸、y軸は虚軸ですが斜め向きの線はどうなるのでしょうか🙇🏻‍♀️