How are Fourier Series and Fourier transform are related?

We know that Fourier series is used for periodic sinusoidal signals and Fourier transform is used for aperiodic sinusoidal signals.

But i want to know that
  1. Is there any relation present between Fourier Series and Fourier transform ?
  2. Also,Can we derive mathematical formula of Fourier transform for a aperiodic signal using Fourier series formula or vice versa ?

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