EXERCISE $6$

Create a Matlab function that has:

Three input parameters

o An input signal

o The sample rate of the input signalo A cut$-$off frequency $($in Hz$)$

An output parameter:

o The filtered signal using a low$-$pass filter $($whichever you want$)$ with the frequency

Established

Demonstrate that the script works by creating:

o As an input signal, a sum of a $200$Hz cosine and a $600$Hz cosine

o Use the Sample Rate you deem appropriate

$$ Use a cut$-$off frequency in such a way that at the output it returns only to us a $200$Hz cosine signal

o You must call your filtering function and get the output signal. Paint in a subplot of two rows by painting the input signal in the top row and the output signal in the top row

o If instead of cosines you want to show that the function does what it has to do differently $($other signals$),$ it will be accepted if the result is correct