1003082301

SubArea: 
Complex numbers in algebraic and polar form
Level: 
B
Project ID: 
1003082301
Source Problem: 
2010013102
Accepted: 
1
Clonable: 
0
Easy: 
0
Given the complex numbers a=2(cos⁡⁡160∘+i⋅sin⁡⁡160∘), b=32(cos⁡⁡150∘+i⋅sin⁡150∘) and c=2(cos⁡240∘+i⋅sin⁡240∘), evaluate a⋅b⋅c.
12(cos⁡190∘+i⋅sin⁡190∘)
12(cos⁡10∘+i⋅sin⁡10∘)
12(cos⁡⁡10∘−i⋅sin⁡10∘)
12(cos⁡⁡190∘−i⋅sin⁡190∘)