Polar coordinates are given by (r,θ).
Rectangular coordinates are given by (x,y)=(rcos θ,rsin θ<span>)
You are given the r and the </span><span>θ.
You need to find </span> what <span>7cos<span>(<span><span>2π</span>3</span>)</span></span> is, then find <span>7sin<span>(<span><span>2π</span>3</span>).
</span></span>
<span>x=<span><span>−7/</span>2
</span>y=7</span><span>√</span>3/2
