What are the components of the vector between the origin and the polar coordinate (5, (pi)/8)(5,π8)?

1 Answer
Dec 19, 2017

(4.619, 1.913)(4.619,1.913)

Explanation:

First off, acknowledge the fact that the question is simply asking you to convert from the polar coordinate to rectangular, namely, x and y components. From here, we will be using a few givens:
(1)(1) Polar coordinates take the form (r, theta)(r,θ)
(2)(2) x = rcos(theta)x=rcos(θ)
(3)(3) y = rsin(theta)y=rsin(θ)

Now we simply evaluate (2)(2) and (3)(3) using r = 5r=5 and theta = pi/8θ=π8.

Thus, our components are (4.619, 1.913)(4.619,1.913), and we are done.