Polar & parametric equations

What the problems look like

A few statements from this skill. Answers, hints and worked solutions live in the practice session.

1. Warm-up

   A point has polar coordinates $\left(4, 120^{\circ}\right)$. Convert the point to rectangular coordinates and give its $x$-coordinate.

2. Warm-up

   A point has polar coordinates $\left(6, 300^{\circ}\right)$. Convert the point to rectangular coordinates and give its $x$-coordinate.

3. Warm-up

   A point has polar coordinates $\left(10, 60^{\circ}\right)$. Convert the point to rectangular coordinates and give its $x$-coordinate.

Problems shown under their original terms: Generated (template, solver-computed).