# Question: how would i go about finding the quadrant for the...

###### Question details

How would I go about Finding the Quadrant for the vector A+B+C? I Know you would Find Each X & Y component but I keep seeing this problem done on Zookal and for Vector C the Vertical Component changes for Sin to Cos and same with Horizontal changing from Cos to Sin? I don't quite Understand why that changes only for vector C?