This is my third time learning about vectors this year (The first being in Calc III, the second time being in linear algebra, and the third being in Physics)

And you won't believe I'm still unsure.

The question is:

VectorAhasy-componentA= 17.0m.Amakes an angle of 40.0 degrees counterclockwise from the positive y axis. What is the x component ofA?

I did some work and I got the x component to be 14.26 meters.

I set my vectorAto have components:A =<Acos(50 degrees),Asin(50 degrees)>, then later I gotAto be 17/sin(50 degrees) by letting Asin(50 degrees) to be 17.