+0  
 
+8
1101
7
avatar+3693 

Here are the answer options:

A. 2(cos90º + i sin90º)

B. 2√2(cos150º + i sin150º)

C. 2(cos7$${\mathtt{\pi}}$$/4 + i sin7$${\mathtt{\pi}}$$/4)

D. 2√2(cos7$${\mathtt{\pi}}$$/4 + i sin 7$${\mathtt{\pi}}$$/4)

 

i think its either C or D but im not sure. Thanks guys! ;)

 Apr 30, 2015

Best Answer 

 #4
avatar+3693 
+13

omg, melody!!! thanks! u once again saved my life! LOL

 Apr 30, 2015
 #1
avatar+50 
+8

D**N! i have no clue brah

 Apr 30, 2015
 #2
avatar+3693 
+8

ikr. this one's tough. ive been working on it for about an hour. :/

 Apr 30, 2015
 #3
avatar+118677 
+13

The angle is anti-clockwise from the positive x axis so that is     7pi/4

The distance out the front is from the origin so it is    $$\sqrt{4+4}=\sqrt{8}=2\sqrt2$$

so the answer is  D

 Apr 30, 2015
 #4
avatar+3693 
+13
Best Answer

omg, melody!!! thanks! u once again saved my life! LOL

BrittanyJ Apr 30, 2015
 #5
avatar+1222 
+3

I tried to help u, but al these people had helped u...

 Apr 30, 2015
 #6
avatar+3693 
+3

thanx for trying to help anyway! Melody has had so much experience with all sorts of math problems. so it doesnt take her long! lol

 Apr 30, 2015
 #7
avatar+1222 
+5

Ur welcome

 Apr 30, 2015

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