I need to understand the rearrangement of an algebraic expression

I am reading a book and the author has jumped from the expression c/sq root of (c squared - v squared) to v squared 1/sq root of (1 -minus (v squared/c squared)). How did they get there please? Hope you can understand this as I can't find out hpw to put in sq root signs etc.
Question asked by: sussexhil

Asked on: 12 Jan 2011

This is quite hard to get your head round without the actual symbols!

is there any way you can post an image of the equation or something to make it just a bit easier to visualise? :)

Generally if it is just a self contained rearrangement the key is to remember to whatever operation you perform you must do to both sides of the sum to keep it valid, e.g. if you square one side then you must also square the other side.

Try rearranging speed = distance / time to work out what distance = and what time = to get reacquainted with rearranging an equation with a simple type first; the rules are the same.
By: knowitall
Replied at: 13 Jan 2011
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algebraic expression rearrangement need understand

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