# Lecture 1B Questions

The questions below are due on Thursday February 18, 2021; 08:00:00 AM.

You are not logged in.

Note that this link will take you to an external site (https://shimmer.csail.mit.edu) to authenticate, and then you will be redirected back to this page.

The following plot shows the signal x[n]=A\cos(\Omega n):

Find the base-band frequency \Omega of x[n]. Enter your answer as a Python expression. You may assume that e, pi, and other common mathematical constants are defined for you.