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Evaluate x² – 1/x² given that x = √2 + 1/√2 – 1

2006-11-20 10:39:47 · 4 answers · asked by h0m3r.simps0n 2 in Science & Mathematics Mathematics

4 answers

(495/98)-((159*√2)/2)
or
.462041705769

Depending on which form u need it in.

2006-11-20 10:45:50 · answer #1 · answered by mbz300sdl2006 2 · 0 1

The airspeed velocity of the European sparrow is different from it American conterpart.

Thus, leaving a margin of error of .75 % (naturally) recurring: therfore, the airspeed velocity must always be taken into account as a base figure.

I.E: 1 x 2 can never simulate 1 x 1.

2006-11-20 10:47:19 · answer #2 · answered by Anonymous · 1 1

x^2 = (√2 + 1/√2 – 1)^2 = 2 + 1 + 1/2 +2 -2√2 - √2 = 11/2 - 3√2
= (11 - 6√2)/2 = (3-√2)^2 / 2

x^2 - 1/x^2 = (3-√2)^2 / 2 - 2 / (3-√2)^2 = (3-√2)^4 - 4 / [2*(3-√2)^2]

2006-11-20 10:52:13 · answer #3 · answered by James Chan 4 · 0 1

6.85

2006-11-20 10:43:08 · answer #4 · answered by adcconline 2 · 0 1

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