Write in standard notation:

Question

Write in standard notation, : a+bi 2(cos π/3+ isin π/3)

Answer 1

Easy. You are supposed to know what sine and cosine of π/3 are.

Substitute those EXACT* values in, and then distribute the 2 factor that precedes the parenthesized quantity.

 

* EXACT means not decimal; you use the well known proportions of the 30-60-90 triangle...