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
ValentinkaMS [17]
2 years ago
6

Value of complex number i^7+1/i^4​

Mathematics
1 answer:
Vera_Pavlovna [14]2 years ago
7 0

i^7 + \dfrac 1{i^4}\\\\=i^2 \cdot i^2 \cdot i^2  \cdot i + \dfrac 1{i^2 \cdot i^2}\\\\=(-1)(-1)(-1)i + \dfrac 1{(-1)(-1)} ~~~;[ i^2 = -1] \\\\\ = (-1)^3 i+ \dfrac 1{(-1)^2} \\\\=-i+1

You might be interested in
Divide. <br> 3/5 \1/4<br><br> A. 3/20<br> B. 5/12<br> C. 4/9<br> D. 2 2/5
KIM [24]
Its letter A 3/20 i divided it


4 0
3 years ago
Today Cenisa runs 450 meters more than yesterday. Yesterday she ran 1.23 kilometers. How many meters does Cenisa run today?
aalyn [17]

Answer: it’s 1680 meters, i did this question today.

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Work out the sum of
Sladkaya [172]

Answer: 1 and 3/70

Explanation: Find the least common denominator and then combine like terms. The LCM is 70.

8 0
3 years ago
What is the average temperature a b c or d
mihalych1998 [28]

Answer: b

Step-by-step explanation:

4 0
2 years ago
Plzzzzzzzzzzzzzzzzzzzzzzzzz
AleksandrR [38]

Answer:

i dont know what it means by expand but i will simplify it

it would simplify to 16x-18

Step-by-step explanation:

5(2x-1) + 2(3x-6)

10x-5+6x-12

10x+6x-5-12

16x-18

7 0
2 years ago
Other questions:
  • 2/5=w-3/2 w=19/10<br> What are the steps?
    7·2 answers
  • Based on the above table, which occupation listed is projected to have the greatest total number of jobs in 2016?
    13·2 answers
  • Find the measurement of the indicated angle to the nearest degree
    13·1 answer
  • What is the slope of the line on the graph?
    6·1 answer
  • (Help fast plz)Which of these tables represents a linear function
    8·1 answer
  • Plz do this and show all the work. Use factoring
    15·1 answer
  • Need help math test pleassssws
    9·1 answer
  • A bar graph titled Games per month has month on the x-axis and number of games on the y-axis. January has 7 games; February, 5 g
    7·2 answers
  • Which expressions are equivalent to 10 over 10 to the 3/4 power?
    9·1 answer
  • How to do [7^{6} * (2/7)^{5}] ÷ (2^{2}). FIRST TO ANSWER WILL BE MARKED AS BRAINLIEST/
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!