Question

PLEASE HELP!
simplify: v-1/v divided by v+1/v

Answer 1

what is v ?

Answer 2

if its 0 then i solve it

Answer 3

^what?

Answer 4

wasnt given any value for v

Answer 5

(v-1/v)/(v+1/v) = (v^2 - 1)/(v^2 +1)

Answer 6

multiply top and bottom by v to clear the fractions

Answer 7

and if you want difference of squares too\[(v-1)(v+1)/(v^2+1)\]

Answer 8

\[\frac{v-\frac{1}{v}}{v+\frac{1}{v}}\times \frac{v}{v}\]
\[\frac{v^2-1}{v^2+1}\]

Answer 9

Thanks guys! You are on the money!