Question

2 Pre Calc problems I need help?

Answer 1

@Vocaloid

Answer 2

@Hero

Answer 3

@TheWaaffleBRO

Answer 4

oh wait thats me

Answer 5

lol

Answer 6

How many people does it take to solve 2 pre calc problems? Let's find out folks!

Answer 7

folks

Answer 8

did i go back in time

Answer 9

it's possible, I mean this math is ancient enough to be your age :thinking:

Answer 10

@Angle

Answer 11

yeah that's correct (sorry that took so long, had to re-teach myself this)

Answer 12

What do you think @Vocaloid ?

Answer 13

i think

Answer 14

if someone says a lot of numbers they get thrown into a volcano.

Answer 15

A lot of numbers
or
27582375890347892347683476893476843763486734897623489672348

Answer 16

It looks like it's D honestly.

Answer 17

Looks right @RektbyFaith

Demoivre's Formula:
\(\cos(x) + i\sin(x))^n = \cos(nx) + i\sin(nx)\)

Answer 18

yeah but @Hero look at this one

Answer 19

I think D?

Answer 20

m = a[cos(x) + i sin(x)]
n = b[cos(y) + i sin(y)]

then m*n = (a*b)[cos(x+y) + i sin(x+y)]

Answer 21

D is correct :)

Answer 22

oooo yay, last one im so sorry lol. I didn't notice it

Answer 23

C and A?

Answer 24

@RektbyFaith you're posting too many problems. I thought you were working on the first one you posted.

Answer 25

yeah sorry lol @Hero
I'll be out of your hair :)

Answer 26

Since the question poster can only give one medal per post, we prefer if people only ask question per question thread.
Feel free to close this question thread and ask a new one :)

Answer 27

Okay np :)