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107年 - 107 東吳大學_暑假轉學生招生考試_經濟學系三年級：經濟數學#105575
> 申論題
5. Determine whether q = 2u 2 = 3v
2
- w
2
+ 6uv - 8uw - 2vw is either positive or negative definite.
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(a) z = xy , subject to x + 2 y = 2 .
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(b) z = x( y + 4) , subject to x + y = 8 .
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(c) z = x - 3 y - xy , subject to x + y = 6 .
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(a) f ( x) = a
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(b) f ( x) = a + bx (b ≥ 0)
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3. Propinquity increases the likelihood that one will meet, be attracted to, and marry someone of the same social categories as oneself.
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4. Early attraction is a result of immediate stimuli such as physical attractiveness, valued surface behaviors, and similar interests.
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107年 - 107 東吳大學_暑假轉學生招生考試_經濟學系三年級：經濟數學#105575
107年 · #105575
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