2 years ago

3. Consider the complex numbers z and w below. Find the difference z-

Mathematics

1 answer:

Rina8888 [55]2 years ago

8 0

Answer:

see explanation

Step-by-step explanation:

z - w

= 1 - 3i - (- 2 + 5i) ← distribute parenthesis by - 1

= 1 - 3i + 2 - 5i ← collect like terms

= 3 - 8i

------------------------------------------------------------

z × w

= (1 - 3i)(- 2 + 5i) ← expand using FOIL

= - 2 + 5i + 6i - 15i² [ i² = - 1 ]

= - 2 + 11i + 15

= 13 + 11i

You might be interested in

full-time job usually means you will work how many hours per week? A. 20 B. 35 C. 40 D. 55 Please select the best answer from th

kirill115 [55]

Answer:

C. 40 or B. 35

Step-by-step explanation:

Full time jobs are typically jobs that vary from 35-40 hours a week.

Hope this helps :)

8 0

3 years ago

Read 2 more answers

The population of a certain species of fish in a lake after t years is given by P(t)=18801 + 1.42e-0.037t. Find the horizontal a

Lunna [17]

Answer:

a) 188 fishes

b) 1259 fishes

Hope this helps!

4 0

2 years ago

Solve for x <br><br> log(7x+1) = log(x-2) + 1

myrzilka [38]

Log(7x+1) - log(x-2) =1

log[(7x+1) / (x-2)] =1 or log[(7x+1) / (x-2)] =log10 (log10=1)

it means (7x+1) / (x-2) =10

Solving ===> x=7

5 0

3 years ago

The figure below shows one of the steps used in inscribing a square in a circle.

sammy [17]

Answer:

Step-by-step explanation:

5 0

2 years ago

PLS HELP!! will give brainliest

lubasha [3.4K]

Answer:

B. {-2, 0, 1, 3}

Step-by-step explanation:

See attached image.

8 0

1 year ago