Question

Bahrrommm I gotta another stupid question

Answer 1

hey

Answer 2

hi

Answer 3

this reminds me.. e^(i*pi) = -1. What class is this? calc 2?

Answer 4

yes

Answer 5

Pippa, just so u know.. I suck at series. I hated that part of Calc 2

Answer 6

well i gotta hand in work that i never even studied yet lol

Answer 7

I am sooooo behind

Answer 8

What was the e^x Maclaurin Expansion?
1 + x + x^2/2! + x^3/3! + ... + x^n/n! right?

Answer 9

lol hahaha i didnt even touch that so like i kind of dont know any of this stuff

Answer 10

eix = cos(x) + i*sin(x)

For what values of x will the above equal i?

i = cos(x) + i*sin(x)

When is cos(x) = 0 and sin(x) = 1? When x = π/2:

So,

i = eiπ/2

So,

ii = (eiπ/2)i = e-π/2

de Moivre's formula:
(cos(x) + i*sin(x))n = cos(nx) + i*sin(nx)

31+i = 3*3i = 3*ei*ln(3) = 3(cos(ln(3)) + i*sin(ln(3)))

3*cos(ln(3)) + 3*i*sin(ln(3)) = 1.364 + 2.672*i

Answer 11

this is what i found on cramster. i paid two bucks for it. Do u think its correct

Answer 12

u paid 2 bucks for it..

Answer 13

lol ya

Answer 14

1.99 to be exact

Answer 15

I could've done that myself.

Answer 16

lol hahaha

Answer 17

I mean just calculating the value for 3^(1+i)

Answer 18

so u want me to pay u two bucks for every answer?????

Answer 19

That's the easy part apparently, and yes it is correct, though i think u have a typo

Answer 20

No pippa i said u wasted ur 2 bucks

Answer 21

lol i was just teasing u

Answer 22

whats the mistake?

Answer 23

ii = (eiπ/2)i = e(-π)/2
there's a difference between e-pi and -e*pi

Answer 24

ohhhh i seee

Answer 25

hold on let me write this on paper, i get confused if i type

Answer 26

lol ok i am waiting patiently :D

Answer 27

do u know how in the world the answerer got to the third line?

Answer 28

i = cos(x) + i*sin(x).. where did that come from?

Answer 29

lol no

Answer 30

can u post a screen of cramster's solution? because what I got was not i = Cos(x)+i*Sin(x)
I got:
i = ln(Cos(x)+i*Sin(x))/x

Answer 31

Maybe it somehow magically turns to cos(x)+i*sin(x) but that's weird.. that would mean e^ix = i

Answer 32

lol

Answer 33

This is the exact answer

Answer 34

oh crap...

Answer 35

http://en.wikipedia.org/wiki/Euler's_formula_in_complex_analysis
Euler got the same thing as me lol.. i mean that's algebra

Answer 36

ughh i've gotten way too many questions wrong and was unable to solve way too many questions today...

Answer 37

arrrrrrrrggggghhhhhh today is the worst day

Answer 38

haha never give up lol

Answer 39

this one's driving me nuts... hold on... i'll find out why i = Cos(x) + i*Sin(x)

Answer 40

kk thanks

Answer 41

"Bahrom's onto something" ~ Abraham Lincoln

Answer 42

hahahahahah okkkkk

Answer 43

OMFG.. they skipped like 7-8 steps.. no wonder..

Answer 44

ohhh ok

Answer 45

i figured out how they got to the 3rd line.. solving the rest..

Answer 46

can u show me those steps

Answer 47

i think im halfway done.. let me just finish..

Answer 48

kk thanks

Answer 49

Ok, proved the first part, with all the steps.. taking a pic and attaching.. hold on

Answer 50

thanks :DDDDDDDD

Answer 51

When is Cosx = 0 and Sinx = 1 is supposed to have a question mark not a comma lol.

Answer 52

ohhhh ok

Answer 53

bahrom i cant really see it do u mind to type bt dont feel like u have to

Answer 54

sure hold on.

Answer 55

THANKS :D

Answer 56

First part (sorry I cheated, i'm rewriting this in smaller portions to get higher res)

Answer 57

lol thanks

Answer 58

ohhhh its much better

Answer 59

Thanks

Answer 60

ohh so the first one is first

Answer 61

ohh so the first one is first

Answer 62

yea.. ill just post one more.. and that completes the first half of the question

Answer 63

lol ok thanks

Answer 64

I am just gonna post ur exact pictures lol. I hope my prof wont realize its not my handwriting

Answer 65

Last part:
That says gives.. now moving on to the 2nd part of the question

Answer 66

lol the steps were epic hahaha

Answer 67

what does epic mean?

Answer 68

superawesome!

Answer 69

hahahahahahaha

Answer 70

U R epic

Answer 71

I seriously hope my prof wont realize that it isnt my handwriting

Answer 72

Hey thanks. That was awesome seriously

Answer 73

np.. working on the rest

Answer 74

ohh there is more to it?

Answer 75

it is totally never ending

Answer 76

YES.. that was only the first half.. we still gotta do the De Moivre's formula

Answer 77

hahahahahaha omg

Answer 78

done, takin pix

Answer 79

LOL I am seriously just copying and pasting these pics i hope they r not copyrighted

Answer 80

DONE!

Answer 81

This one i sso clear!!!! That was awesome

Answer 82

OMG I am such a cheater

Answer 83

my workplace is a mess....

Answer 84

its perfect

Answer 85

lol u're welcome :) i meant my desk and stuff around it is a mess

Answer 86

ohhh LOL So u want ur two bucks?????????

Answer 87

hey.. dont insult me.. come on :/ i dont do this for money

Answer 88

I was just teasing :D

Answer 89

K seriously thanks. I may have two more questions but they will be on linear algebra i wldnt want to bother u with those LOL

Answer 90

lol i suck at it, at least im honest

Answer 91

hahahaha ok gnite. Isnt it 1 am at ur place?