3 years ago

Help on complex numbers

1 answer:

4 0

1) 1/6i=-6i
2) - (-4+5i)=4-5i
3) 1/(2+i)=(2-i)/(4+1) = (2-i)/5
4)1/(-3+5i)=(-3-5i)/(9+25)
5) square root of ( 5*5 + 12*12) = 13

You might be interested in

Use the figure below to determine the length of sides b and c. options: b = 5√3, c = 10 b =10, c = 5√3 b = 5√2, c = 10√3 b = 5,

Reil [10]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

What is the degree of polynomial blow? x^6+3-2x^2+4x^7-4x

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

hello :

the degree of polynomial is : 7

7 0

3 years ago

Read 2 more answers

5/2x-3 is this a monomial, binomial, or trinomial

Serga [27]

Its a binomial. There are two terms

6 0

3 years ago

In an arithmetic sequence, if a2= 5 and a10= 19 find a6

OLEGan [10]

Answer:

a₆ = 12

Step-by-step explanation:

The nth term of an arithmetic sequence is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₂ = 5 and a₁₀ = 19 , then

a₁ + d = 5 → (1)

a₁ + 9d = 19 → (2)

Subtract (1) from (2) term by term to eliminate a₁

8d = 14 ( divide both sides by 8 )

d = 1.75

Substitute d = 1.75 into (1)

a₁ + 1.75 = 5 ( subtract 1.75 from both sides )

a₁ = 3.25

Then

a₆ = 3.25 + 5(1.75) = 3.25 + 8.75 = 12

6 0

2 years ago

Angle's father rides a motorcycle every weekend. He rides to relax. He travels 78 miles in two days every weekend. if he travels

d1i1m1o1n [39]

he rides two days so divide total by 2 = 39

3 0

3 years ago