Answer:
( cos40° + isin40°)
Step-by-step explanation:
To divide
= [ cos(x₁ - x₂) + isin(x₁ - x₂)
Given
= ( cos(90 - 50)° + isin(90 - 50)°
= ( cos40° + isin40° )
n=42
n/6-2=5
n/6=7
Short leg: 7cm
Long leg: 7√3
This is a 30 60 90 triangle.
Picture shows how to solve.