1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kondaur [170]
2 years ago
13

What is the conjugate? See image below! Please help asap

Mathematics
1 answer:
Stolb23 [73]2 years ago
4 0

9514 1404 393

Answer:

  • 2 +3i
  • 8 -i√5
  • 7 +2i
  • 4 +√7

Step-by-step explanation:

The conjugate is found by changing the sign of the square root term.‡ (For this purpose, i = √-1.)

a) the sign of 3i is changed: 2 + 3i

b) the sign of sqrt(-5) is changed: 8 -sqrt(-5) = 8 -i√5

c) the sign of 2i is changed: 7 +2i

d) the sign of sqrt(7) is changed: 4 +√7

_____

‡ Actually, the conjugate of a binomial is formed by changing the sign <em>between</em> terms. The purpose is to allow the product of the binomial and its conjugate to be the difference of squares.

Conventionally, the conjugate of a complex number is the value with the sign of the imaginary part reversed. That is why (-2i+7)* = 7+2i.

You might be interested in
Question 15 of 16
Westkost [7]

The same input is being mapped into two outputs, so this is not a function.

<h3>Does the table represent a function?</h3>

A function is a relation that maps elements from the domain into elements from the range. Such that each element of the domain can be mapped into only one element of the range.

Here we have the table:

x    y

4   2

3   3

4   5

5   6

7   7

As you can see, the input x = 4 appears two times, first it is mapped into y = 2, and then it is mapped into y = 5.

Then this table does not represent a function.

If you want to learn more about functions:

brainly.com/question/2328150

#SPJ1

7 0
2 years ago
Hello please help i’ll give brainliest
Nata [24]
Causing the surface water to evaporate
4 0
2 years ago
Read 2 more answers
Teachers drive a mini-van. what percentage of the teachers drive a mini-van? (6.5B*) There are 60 teachers at Smith Middle Schoo
tekilochka [14]
20 o/o fndjdndbbbbbndndn
5 0
3 years ago
Combine like terms 7a - a+ 16 = ?
dexar [7]
6a+16

Explanation:
If there's just a variable, there's an understood 1 in front of it. So what that really says is:

7a-1a+16

So, you combine the a's. 7a minus 1a is 6a. Same as 7-1,but you have a variable stuck on the end of it.

6a+16

:^)
4 0
3 years ago
Read 2 more answers
Find the quotient of the quantity negative 6 times x to the 2nd power times y to the 8th power plus 12 times x times y to the 3r
olga nikolaevna [1]
[ - 6 * x^2 * y^8 + 12*  x * y^3 - 36 * x * y^2 ] / [6*x*y^2] =

[-6x^2 y^8 ] / [6xy^2] + [12x y^3] / [6xy^2] - [36xy^2] / [6xy^2] =

- xy^6 + 2y - 6

Answer: - xy^6 + 2y - 6

6 0
3 years ago
Read 2 more answers
Other questions:
  • A club has 25 members. How many ways are there to choose four members of the club to serve on the executive committee? How many
    9·1 answer
  • Solve for x. <br><br> 3x/6 + 1 = 7
    9·2 answers
  • 8. What is the point-slope form of a line passing through the point (-2.5) with the same slope as
    9·1 answer
  • Suppose chocolate is on sale for $0.40 a bar and you have a coupon for $0.20 off your total
    8·1 answer
  • If 3 cooking spoons cost 12 dollars,<br> how much do 16 cooking spoons cost?
    10·1 answer
  • Help me with this question
    10·1 answer
  • Help me please urgent !!
    9·2 answers
  • What is the volume of a cube measuring: height 10m,length 15m and width 20 cm
    14·2 answers
  • Simplify.
    15·2 answers
  • If a_1=9a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!