Find the value of X and Y suitable for 2x-y + I = 1 + (Y-3) I, where x ∈ R and y are pure imaginary numbers

Let Z ∈ R, y = Zi be replaced by 2x-y + I = 1 + (Y-3) I. by using the definition of complex number equality, we can calculate x, Z

Square root of complex number 1 + 2I
Let's set the square root of 1 + 2I = a + bi, and the answer is that there is a root in the root

Plural 1 + 2 / (the square of I) =? I haven't done it for a long time,

Original formula = 1 + 2 / (- 1) = - 1

Let I be an imaginary unit and the imaginary part of the complex number 3-2i be?

The complex form z = a + bi
Where a is the real part and B is the imaginary part
therefore
The imaginary part of complex number 3-2i is
-2

Simple algorithm of 0.375 * 1 you 3 / 4 + 5 / 8 * 1.75

3/8*7/4+5/8*7/4=(3/8+5/8)*7/4=1*7/4=7/4

In the equal ratio sequence (an), we know A1 = 3, Sn = 189, an = 96, find n, Q

Sn = (A1 QaN) / (1-Q), 189 = (3-96q) / (1-Q), q = 2, and then substituting in, an = A1 × [Q ^ (n-1)], n = 6

() x () = () △ x () = () () is filled with 0 1 2 3 4 56 and cannot be repeated

3x4=60/5=12
What do primary schools do with this kind of problem

If the circumference of an isosceles trapezoid ABCD is 104cm, ad ∥ BC, and ad: ab: BC = 2:3:5, what is the median length of this trapezoid?

The ratio of four sides is 2:3:5:3, ad is 104 * 2 / (2 + 3 + 5 + 3) = 16cm, BC is 104 * 5 / (2 + 3 + 5 + 3) = 40cm,
Median = (AD + BC) / 2 = 28cm

Fill in the circle with the appropriate operation symbol to make the equation hold
1: Half half half half half half half half half half half half half half = 0
2: 1 / 2 0 / 2 0 / 2 0 / 2 0 / 2 = 1 / 2
3: 1 / 2 / 2 / 2 / 2 / 1 / 2 = 1
4: Half half half half half half half half half half half half half half = 2
Urgent, tomorrow will hand in Wuwu~

Half + Half + Half - half - half = half
Half half by half - half by half = 0
Half by half + Half + half by half = 1
Half divided by half divided by half - half + Half = 2

What is the relationship between matrix A = 0 and its determinant IAI = 0?

If a matrix A = 0, then its determinant IAI = 0. But if the determinant of a matrix is equal to 0, it is not necessarily a 0 matrix

Find the value of X and Y suitable for 2x-y + I = 1 + (Y-3) I, where x ∈ R and y are pure imaginary numbers