81s^2 - 1 = 0

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- Oct 21st 2008, 12:02 PMmathdummy22is there a way to solve this?
81s^2 - 1 = 0

- Oct 21st 2008, 12:04 PMMoo
- Oct 21st 2008, 12:04 PMbatman
you have 81s^2=1, or s^2=1/81. Now take square roots to find s=sqrt(1/81) or s=-sqrt(1/81). So s=1/9 or s=-1/9

- Oct 21st 2008, 12:08 PMmarionca57