65 lines
759 B
Plaintext
65 lines
759 B
Plaintext
ans
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40626
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$3$
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40627
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$462$
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40628
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$1$
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40629
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$240$
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40630
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$\dfrac{31}3$
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40631
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$2$或$3$
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40632
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$\mathrm{e}$
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40633
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$2449440x^6$
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40634
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$\dfrac{15}{56}$
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40635
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$(-\infty,1)$
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40636
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$6790$
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40637
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$\dfrac{8\sqrt{3}}9$
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40638
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A
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40639
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B
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40640
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C
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40641
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B
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40642
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(1) $y=-2x+2$; (2) $[3-\sqrt{6},3+\sqrt{6}]$
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40643
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(1) $\dfrac 13$; (2) $\dfrac{17}{81}$
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40644
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(1) $\theta=\dfrac\pi 4$时, $S=\dfrac{2-\sqrt{2}+\sqrt{3}}2R^2$, ``得地率''约为$74\%$; (2) $\theta = \arcsin\dfrac{1+\sqrt{33}}8$时, ``得地率''最大
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40645
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(1) $b=\sqrt{3}$; (2) $a=2$; (3) $C$的坐标为$(-\dfrac 43,-\dfrac 13)$或$(-\dfrac 43,\dfrac 13)$
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40646
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(1) $f(x)$是``线性控制函数'', $g(x)$不是``线性控制函数'', 理由略; (2) 是真命题, 理由略; (3) 证明略 |