Why is the complex a + bi = a-bi the conjugate of Z = Z

Why is the complex a + bi = a-bi the conjugate of Z = Z

a + bi = a - bi
It shows that B = 0
Then a + bi = a - Bi = a is a real number
For a complex z = a + bi, there is generally no a + bi = a - Bi, unless B = 0
This is the definition of conjugation
The complex numbers whose real parts are equal and imaginary parts are opposite to each other are conjugate complex numbers. Thank you for your participation, though.
Let | Z | = a (a > 0), find the locus of the point in the complex plane corresponding to the complex w satisfying w = 1 / 2 (Z + A ^ 2 / z) (Z belongs to c)
Let z = a (COS θ + isin θ), then
w=acosθ=x+yi,x,y∈R,
∴x=acosθ,y=0,
The trajectory is a line segment on the x-axis: y = 0 (- a)
What are the third person plural and the third person singular of wear
Three person wears, past tense wore, past participle worn
The third person plural is wear
The third person singular is weeks
The past tense is wore
The past participle was won
Given that the complex number W satisfies W-4 = (3-2w) I (I is the imaginary unit), z = 5W + | W-2 |, a quadratic equation with real coefficient and Z as root is obtained
[solution 1] ∵ the complex w satisfies W-4 = (3-2w) I, ∵ w (1 + 2I) = 4 + 3I, ∵ w (1 + 2I) (1-2i) = (4 + 3I) (1-2i), ∵ 5W = 10-5i, ∵ w = 2-i. ∵ z = 52 − I + | 2 − I − 2 | = 5 (2 + I) (2 − I) (2 + I) + 1 = 2 + I + I + 1 = 3 + I
Is the countable noun after I like singular or plural?
I asked about countable nouns
I like apples / I like the book / I like orange justice
How many
The singular and the plural are OK.
Both countable and uncountable nouns are OK
Third person plural and singular?
The swimming pool open (s) at 7:30am?
The Olympic Games take (s) place every four years?
The Panama Canal connect the Atlantic and Pacific oceans. Do you want to add s to this link once?
I'm confused. I've never paid attention to these place names before
Swimming pool, of course, is singular. It must be s. similar news: Dalian swimming pool opens to public. Bad driving technology, of course, is singular. Similar news: bad driving causes crashes to a much greater degree. The o
The swimming pool is open (s) at 7:30am. There is no s added to the swimming pool, so it is singular, so add s after open;
Bad driving causes many accidents;
Olympic Games is a singular and plural homograph, which refers to the Olympic Games;
The Panama Canal
The swimming pool is open (s) at 7:30am. There is no s added to the swimming pool, so it is singular, so add s after open;
Bad driving causes many accidents;
Olympic Games is a singular and plural homograph, which refers to the Olympic Games;
The Panama Canal connects the Atlantic and Pacific oceans. The Panama Canal here is singular, so s is added.
In fact, the singular or plural depends on the noun before the predicate, not on the noun after the predicate. However, the singular and plural of some special nouns need special treatment, such as Olympic Games and so on. Put it away
The swimming pool open (s) at 7:30am
Bad driving causes many accidents. In this sentence, causes is added with s because the subject in front of it is bad driving, which is the third person singular
The Olympic Games take (s) place every four years
The swimming pool open (s) at 7:30am
Bad driving causes many accidents. In this sentence, causes is added with s because the subject in front of it is bad driving, which is the third person singular
The Olympic Games take (s) place every four years
The Panama Canal connect the Atlantic and Pacific oceans
I hope it will help you. Put it away
The swimming pool is the third person singular form
Bad driving is also the third person singular "bad driving behavior"
The Olympic Games is plural
Finally, when it's four oceans, ocean has a plural form, which connects two oceans, so we need to use oceans
Swimming pool, of course, is singular and must be s
Bad driving gerund, single driving causes crashes to a much greater degree
The Olympic Games is a fixed phrase
Swimming pool, of course, is singular and must be s
Bad driving gerund, single driving causes crashes to a much greater degree
The Olympic Games is a fixed phrase with the same type of singular and plural. It is generally used in the plural, similar to the news: Summer Olympic Games open in London, but it is estimated that it can be used in the singular under special circumstances.
Of course, there is only one Panama Canal, which must be singular and need s
I'm an English editor. I hope I can help you from my practical point of view. Ask: sometimes he is always get (s) to work on time, this always is the verb has added s, after the get will continue to add s?
Given that the complex number W satisfies W-4 = (3-2w) I (I is the imaginary unit), z = 5W + | W-2 |, a quadratic equation with real coefficient and Z as root is obtained
[solution 1] ∵ the complex w satisfies W-4 = (3-2w) I, ∵ w (1 + 2I) = 4 + 3I, ∵ w (1 + 2I) (1-2i) = (4 + 3I) (1-2i), ∵ 5W = 10-5i, ∵ w = 2-i. ∵ z = 52 − I + | 2 − I − 2 | = 5 (2 + I) (2 − I) (2 + I) + 1 = 2 + I + I + 1 = 3 + I
Are the nouns after I like plural bicycles.bicycle Would you like to add s?
Like can be followed by plural, singular and uncountable nouns, depending on the specific meaning
You don't need to add the number above, for example, it depends on whether you can add the number above.
For example, I like water, where water is uncountable, is not necessary?
Does people belong to the third person singular or plural?
When can I do odd numbers? Please give me an example,
People are simple and complex homographs
For example, we can say many people, three hundred people, but not a / one people
There are 56 people in China. There are 56 people in China
The people refers to the people
We study for the people.
We learn for the people
Given that the complex w satisfies 1 + W = (3-2w) I (I is an imaginary unit), z = the square of the absolute value of W-W, find the complex Z
Let w = a + bi, from 1 + W = (3-2w) I get a + 1 + bi = 2B + (3-2a) I, so a + 1 = 2B, B = 3-2a, the solution is a = b = 1, so w = 1 + I, so z = | w | ^ 2-W = 2 - (1 + I) = 1-i
How can the square of absolute value be negative!
Let w = a + bi
Because "Z = the square of the absolute value of W-W"
So z = / a quadratic + B quadratic / quadratic - (a + bi) - is Formula 1
And "1 + W = (3-2w) I"
Substituting w = a + bi, we get the formula - is formula 2
Simultaneous equations, solve AB, get Z
This is my idea. After reading it and combining with the calculation process of my friends upstairs, you will solve all these problems. By the way, is it a liberal arts student from Tianjin? ... unfold
Let w = a + bi
Because "Z = the square of the absolute value of W-W"
So z = / a quadratic + B quadratic / quadratic - (a + bi) - is Formula 1
And "1 + W = (3-2w) I"
Substituting w = a + bi, we get the formula - is formula 2
Simultaneous equations, solve AB, get Z
This is my idea. After reading it and combining with the calculation process of my friends upstairs, you will solve all these problems. By the way, is it a liberal arts student from Tianjin? Put it away