i have attached my question as well as the answer to it
i have been asked to sketch this polar graph. This is from an past exam paper hence i would sketch it by hand. Although for the purpose of the answer the graph was created on computer.
from notes i now that the graph is a spiral.
However in the marking scheme you must show where the curve crosses the axis. And i don't know how to find out from the equation where the curve crosses the axis
I was wondering if someone could tell how i can work it out