SOLUTION: In the equation {{{x=((1-y)/(1+y))}}}, I know empirically that x = y when either of them has the value {{{sqrt( 2 ) -1}}}, but I don't know how to prove it algebraically.
ANY he
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Question 1068984: In the equation , I know empirically that x = y when either of them has the value , but I don't know how to prove it algebraically.
ANY help greatly appreciated!
Answer by ikleyn(52779) (Show Source): You can put this solution on YOUR website!
.
To prove it algebraically, simply SUBSTITUTE y = into the right side.
Then simplify and check.
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