If the complex number | Z | = 1, | Z & # 179; + Z & # 178; | = 1, then the complex number Z is equal to

If the complex number | Z | = 1, | Z & # 179; + Z & # 178; | = 1, then the complex number Z is equal to

Because: | Z | = 1, so: | Z & # 179; + Z & # 178; | = | Z + 1 | = 1 solution 1: let z = x + Yi, and then substitute it into | Z | = 1, | Z + 1 | = 1 to get the equations about X and y, so: z = - 1 / 2 ± (√ 3 / 2) I solution 2: using the geometric meaning of complex modulus, from | Z | = 1, it is obtained that the complex Z takes (0,0) as the center and 1 as the radius

4. Let a = Log1 / 2 (3), B = (1 / 3) ^ 0.2, C = 2 ^ (1 / 3), which is bigger?

Draw Log1 / 2 (x) (1 / 3) ^ (x) 2 ^ (x) respectively to see that when x = 3, Log1 / 2 (x)

When doing an addition problem, little careless regards 3 as 8 and 9 as 5. The result is 387. What is the correct result

Add 5 for the individual and 4387-5 + 40 = 422 for the ten

If the rank of a matrix of four times two is two, is it full rank?

Is full rank, which is defined as R (am × n) = min {m, n}

40% of a number is 18 more than 25% of it. The number is solved by equation

Let this number be X
40%X-25%=18
0.15X=18
X=18÷0.15
X=120

120 inch 16:9 projection screen. What are the dimensions of length and height?

120 inch 16:9 projection screen. The length and height of the screen depends on the brand of the screen. The 119 inch 16:9 screen size of JK is 2635 × 1480mm, and the black top is 2654 * 1494. You can search the specific brand size on the Internet. I hope it can help you

Xiaohua read a story book. On the first day, she read one third of the whole book, six more pages. On the second day, she read one sixth of the whole book, 18 more pages, and 12 more pages,
How many pages altogether

Suppose there are x pages altogether
1/3x+6+1/6x+18+12=x
1/3x+1/6x-x=-30
-（1/2x）=30
x=60
A: the book has 60 pages

The three children of xy-8x the three children of two character square-x multiplied by the two character square of y-y-6

It's the second power, not the character. Learn Mandarin well
XY ^ 3-8x ^ 2-x ^ 3Y ^ 2-y ^ 4-6 is the simplest form

It's 360 kilometers from place a to place B. a small bus can travel 36 kilometers in half an hour at most. How long does it take to complete the whole journey?

360 ﹣ 36 ﹣ 2 = 5 (hours)
A: it takes up to 5 hours to complete the journey

There are [] points on the number axis whose distance from the origin is less than 4 and represent integers; there are [] integers whose absolute value is less than 3 and they are

There are [7] points on the number axis whose distance from the origin is less than 4 and representing integers; there are [5] integers whose absolute value is less than 3, they are [- 2, - 1, 0, 1, 2]