how is this: (4+x^2)/sqrt(4+x^2)

the same as sqrt(4+x^2)

?? could someone explain step by step? thanks :)

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- Dec 2nd 2010, 12:04 PMsituationsimple rearrangement which i cant do!
how is this: (4+x^2)/sqrt(4+x^2)

the same as sqrt(4+x^2)

?? could someone explain step by step? thanks :) - Dec 2nd 2010, 12:13 PMtonio
- Dec 2nd 2010, 12:14 PMe^(i*pi)
If you let then you get which is u.

Alternatively, recall that - Dec 2nd 2010, 12:15 PMharish21
- Dec 2nd 2010, 12:16 PMsituation
- Dec 2nd 2010, 12:17 PMsituation