_ It is known that the equation (1-2k) x & sup2; - 2 √ K X-1 = 0 about X has two unequal real roots

_ It is known that the equation (1-2k) x & sup2; - 2 √ K X-1 = 0 about X has two unequal real roots


Because the equation has two unequal real roots
So B & sup2; - 4ac > 0
（-2√k）²－4×(1-2k)×（-1）＞0
4k＋4－8k＞0
－4k＞－4
k＜1
And 1-2k ≠ 0
k≠1/2
The range of K is k < 1 and K ≠ 1 / 2

Elden Ring Premiere

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