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
Svet_ta [14]
2 years ago
12

Let z=1+i where i^2=-1.calculate z^2 z^3 z^4

Mathematics
1 answer:
allochka39001 [22]2 years ago
4 0

Answer:

0

Step-by-step explanation:

i^2=-1

i=-1

Subsite i in for z

z=1+-1

Add -1 to both sides

z=0

Anything multiplied by 0 is just 0.

You might be interested in
Find the length of a diagonal of a square with sides 10in. long
Ghella [55]
Hey!!!
Answer is....
diagonals of square bisect each other at right angles.
let diagonal be 2x
Using Pythagoras in a triangle enclosed by a side and 2 half diagonals...
{x}^{2}  +  {x}^{2}  =  {10}^{2}
2 {x}^{2}  = 100
{x }^{2}  = 50
x =  \sqrt{50}
side of a diagonal=2 sqrt50
= 10 \sqrt{2}
cm......



HOPE IT HELPS YOU '_'
3 0
3 years ago
Read 2 more answers
Tell me 3 mathematical things that you know in relation to geometry
sweet [91]

Answer:

Dilations which reduce or enlarge an object. Translations which move the object from one part on the graph to another. I have also learned about how to construct a perpendicular bisector.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
the ratio of blue marbles to white marbles and summer bag is equal to 1 to 2 if there are 20 blue marbles how many white marbles
Svet_ta [14]
The answer is 30 marbles
6 0
3 years ago
Read 2 more answers
10. Fred has to read a book for a test in 2 weeks. If he reads the same number of pages per day and the book has 350 pages, how
Angelina_Jolie [31]

Answer:

25 pages per day

Step-by-step explanation:

Fred has 14 days to finish 350 pages.

To find out how many pages he needs to read each day, we divide 350 by 14, to get 25.

5 0
1 year ago
Read 2 more answers
David, Egil and Frances share money in the ratio 2:7:9. Frances gets ?80 more than David. Explain how you know Egil gets ?80.
Natalija [7]

Step-by-step explanation:

We have been given that David, Egil and Frances share money in the ratio 2:7:9.

Let 2x, 7x and 9x be the amounts of money that David, Agil and Frances get respectively.  

We are told that Frances gets $80 more than David. So we can write this information in an equation as:

9x=2x+80

Now let us solve for x.

9x-2x=80

7x=80

x=\frac{80}{7}

Now let us substitute x=\frac{80}{7} in 7x (amount of money that Egil gets).

\text{ Amount of money that Egil will get}=7\cdot \frac{80}{7}

Upon cancelling out 7 from numerator and denominator we will get,

\text{ Amount of money that Egil will get}=80  

Therefore, Egil will get $80.    

6 0
3 years ago
Other questions:
  • Solve for y 3y/7 − 6 = 30
    10·1 answer
  • Does anyone knows how to solve this question??
    8·2 answers
  • Julianna has been given two segments and the measure of an angle between them. She is trying to construct a congruent triangle.
    5·1 answer
  • Which expression is the radical form of m^2.5?
    7·1 answer
  • 16 is 80% of what number
    15·2 answers
  • Find the output, y, when the input, x, is -5.​
    9·1 answer
  • Alison has 8 pairs of pants and 12 shirts in her closet. She also has 7 pairs of shoes. How many different outfits can she wear?
    12·2 answers
  • Help please ASAP!!
    14·2 answers
  • Which value of x makes the equation -2(1-4x)=3x+8 true?
    6·1 answer
  • A person is running a distance race at a constant rate. What time will they finish the race what information would you need to b
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!