# How to find Fourier series coeffecients of convolution of two periodic continuous functions with different time periods?

Above given is my solution Plz check if it is correct and I got struck at last step .Plz help

• How is the convolution of two periodic signals defined? Yes, you can write out the convolution integral and it certainly is a very pretty formula but is the integral convergent or does it diverge? If the latter, you need to come up with a different definition for the convolution of two periodic signals. – Dilip Sarwate Mar 8 '19 at 5:03