quote:Originally posted by Ash_
The sum of a number and it's reciprocal is 30. Find the number.
x+1/x=30
x^2 + 1 = 30x
X^2 - 30x +1 = 0
A x^2 + B x + C = 0
Is a fraction ok ?? Cause its gotta be
Use [-B +- (B^2 - 4 AC)1/2] / 2A = Roots
ie roots are [-B + (B^2 - 4 AC)^1/2] / 2A And [-B + (B^2 - 4 AC)1/2] / 2A
Ill work it out
This post was edited on 03-31-2005 at 02:54 PM by John Anderton.
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