The relativistic law for velocity addition
$$v = \frac{v_1+v_2}{1+\frac{v_1\cdot v_2}{c^{2}}}$$
v - relativistic velocity (speed)
v1, v2 - speeds in systems
c - speed of light
v1, v2 - speeds in systems
c - speed of light
Find
It is known that:
= 