Question

How to prove that e = mc2

Answer 1

E=mc²
=>Energy is equal to mass times speed of light square As said by Einstein
So, E=mc²

Answer 2

$\huge\bf{hey}$

$\huge { \mathfrak{here \: is \: answer}}$

pls see in pic

in this famous equation

e is energy 

m is mass

and c ^2 is speed of light

using this equation 

Einstein showed the relationship between the mass and energy.

and according to the theory of relativity

nothing can travel higher than the speed of light.

which values 299729458m/s

$\huge \boxed{ \boxed{hope \: it \: helps}}$

$\huge{ \mathbb{THANKS}}$