Given that a and B are rational numbers, and the root sign 2A + (root sign 2-1) B = 2 root sign 2a-1, try to find the solution set of inequality - ax & gt; 2B
Root 2 × a + (root 2-1) B = 2 × root 2 × A-1
(radical 2) a + (radical 2) B-B = 2 (radical 2) A-1
(radical 2) (B-A) = B-1
a. B are rational numbers. If we want this formula to hold,
Only: B-A = 0, B-1 = 0
So: a = b = 1
And: - ax > 2B
Then: - x > 2
x
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