What is the ideal bandwidth of an FM signal?

Intermediate frequency of FM receiver:

Explain frequency modulation.

Distinguish between frequency and amplitude modulations.

The frequency of the FM radio band is from _____.

Represent the union of two sets by Venn diagram for each of the following.

$X=\{x | x$ is a prime number between $80$ and $100\}$

$Y=\{y | y$ is an odd number between $90$ and $100\}$

Explain centre frequency or resting frequency in frequency modulation.