1. (x=X1+vt1, x1=x-vt )(adsbygoogle = window.adsbygoogle || []).push({});

2.(t=t1+vx1/c2, t1=t-vx/c2 )

I know that 1. is x in terms x1 and x1 in terms of x.

I understand it very well, the adding and substracting of

velocity.

But i am unable to understand the 2.how these equation are

derived and what does they mean.

The mane problem is how they are derived.

Please help me.

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# How to derive t1 in terms of t and t in terms of t1

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