algebra
posted by Molly .
f(x)= 1/x2
Plug in 1 for x.
I keep getting 1 but the book says the answer is 3. Please help. Thanks

algebra 
Reiny
If f(x) = 1/x  2 , the way you typed it, then
f(1) = 1/1  2 = 12 = 1
if f(x) = 1/(x2), then
f(1) = 1/(12) = 1/1 = 1
either way, your book is wrong.
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