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
devlian [24]
3 years ago
12

Simplify the expression. 3+i/2-i x 4+i/2+i

Mathematics
2 answers:
saul85 [17]3 years ago
6 0

Answer:

(11 + 7i) / 5

11/5 + 7/5 i

Step-by-step explanation:

(3 + i) / (2 − i) × (4 + i) / (2 + i)

((3 + i) (4 + i)) / ((2 − i) (2 + i))

(12 + 3i + 4i + i²) / (4 + 2i − 2i − i²)

(12 + 7i − 1) / (4 + 1)

(11 + 7i) / 5

11/5 + 7/5 i

cluponka [151]3 years ago
3 0

Answer:

The solution of your problem is 3-2i

You might be interested in
Factor completely. x^3-8x^2-2x+16
amm1812

Step-by-step explanation:

{x}^{3 }  - 8 {x}^{2}  - 2x + 16 \\  =  {x}^{2} (x - 8) - 2(x - 8) \\  = (x - 8)( {x}^{2}  - 2) \\  = (x - 8)( {x}^{2}  -  { \sqrt{2} }^{2} )  \\  = (x - 8)(x +  \sqrt{2} )(x -  \sqrt{2} )

8 0
4 years ago
Help meeeeeeee pleaseeee
s2008m [1.1K]
There’s no picture or question what do you need help with
7 0
3 years ago
Read 2 more answers
How many roots does the graph polynomial function have?
lisov135 [29]
The graph crosses the x axis 3 times so there are 3 roots.

B
6 0
3 years ago
Read 2 more answers
Express the angle in radian measure<br> 108 degrees= __pi/___
Alexandra [31]

Answer:

108° = \frac{3\pi }{5} radians

Step-by-step explanation:

To convert from degrees to radians

radians = degree measure × \frac{\pi }{180}, thus

radian measure = 108° × \frac{\pi }{180} = \frac{3\pi }{5}

6 0
3 years ago
Find the volume of the triangular prism.<br><br> 360 ft 3<br> 1,200 ft 3<br> 720 ft 3<br> 600ft 3
max2010maxim [7]
Volume=areabase times height
base=traignele
area=1/2 times base times height=1/2 times 10 times 12=60
height=20

volume=60 times 20=1200 cubic feet

2nd option
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which equation shows an equation equivalent to x^2+12x+7=0
    12·1 answer
  • A squirrel feeder holds 4 1/2 cups of seeds. Another squirrel feeder
    5·1 answer
  • Divide 33 photos into two groups so the ratio is 4:7
    12·1 answer
  • If somebody could answer this it would be great
    8·1 answer
  • Please help ASAP will give brainilest to best answer
    14·1 answer
  • I need help asap plz
    5·1 answer
  • Find the value of x so that the function has the given value.<br> k(x)=7;k(x)=49
    11·1 answer
  • Un dirigible que está volando a 800 m de altura, distingue un pueblo con un ángulo de depresión de 12°. ¿A qué distancia del pue
    5·1 answer
  • Write the number for two million nine thousand .
    7·1 answer
  • For questions 16 - 19, write each expression in the standard form for the complex number a + bi.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!