Is Compact circle or not

1.	Is Compact circle or not
Answer» COMPACT then f is continuous, and the UNIT CIRCLE is f([0,2π]) and so it's a compact set of R2 as IMAGE of the compact [0,2π] by the continuous function f.

Answer»

COMPACT

then f is continuous, and the UNIT CIRCLE is f([0,2π]) and so it's a compact set of R2 as IMAGE of the compact [0,2π] by the continuous function f.