All categories

3 years ago

Helpppppppppppp ASAP THANKS

Mathematics

2 answers:

sergiy2304 [10]3 years ago

7 0

$(2+i)^3=(i+2)^3$ ↝ Properties

$(x+y)^3=x^3+3x^2y+3xy^2+y^3\\(i+2)^3=i^3+3(i)^2(2)+3(i)(2)^2+2^3\\(i+2)^3=i^3+6i^2+12i+8$

Proceed with define of complex number.

$i=\sqrt{-1}\\i^2=-1\\i^3=-i\\i^4=1$

$-i-6+12i+8\\2+11i$

Therefore, the answer is 2 + 11i

strojnjashka [21]3 years ago

4 0

Answer:

c or d

Step-by-step explanation:

You might be interested in

When you multiply fractions does the denominator change

Ede4ka [16]

Answer:

Step-by-step explanation:

When multiplying fractions, simply multiply the numerators together and then multiply the denominators together.

This works whether the denominators are the same or not.

(e.g) if you multiply the fractions 3/2 and 4/3 together, you get 12/6.

hope this explanation helped..<3

4 0

3 years ago

What is the slope of a line that is perpendicular to the line y=1/6x+4?

nlexa [21]

Since the slope is rise/run, 1/6 goes up one, right 6. Perpendicular is opposite that. so a slope of -6 goes down 6 and right 1. (as a fraction it's -6/1)

7 0

4 years ago

Please help me with this

Dahasolnce [82]

Answer:

Step-by-step explanation:

6 times 7 is 42

4 0

2 years ago

Find the distance between the pair of points. (-16, 12) and (-22, -19).

NeTakaya

$d = \sqrt{(x_{2} - x_{1})^{2} + (y_{2} - y_{1})^{2}}$
$d = \sqrt{[-22 - (-16)]^{2} + (-19 - 12)^{2}}$
$d = \sqrt{(-22 + 16)^{2} + (-31)^{2}}$
$d = \sqrt{(-6)^{2} + (-31)^{2}}$
$d = \sqrt{36 + 961}$
$d = \sqrt{997}$
$d \approx 31.57$

8 0

3 years ago

100 POINTS. HELP ASAP !!! PLEASE PLEASE

defon

Answer:

I dont know sorry

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers