60 lines
771 B
Plaintext
60 lines
771 B
Plaintext
ans
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025088
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$1$
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025089
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$(0,0)$
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025090
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$m$
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025091
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$5$
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025092
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$2x$
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025093
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$\mathrm{i}$
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025094
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$-\dfrac{3}{4}$
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025095
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$\dfrac{1}{2}\pm \dfrac{\sqrt{3}}{2}\mathrm{i}$
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025096
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$[-1,3]$
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025097
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$\dfrac{1}{2}$
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025098
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$(0,\dfrac{\pi}{2})$
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025099
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A
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025100
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A
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025101
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D
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025102
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(1) $6$; (2) $\pm 6$或$\pm 2\sqrt{11}$
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025103
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(1) $5$; (2) $\dfrac{-3\pm \sqrt{5}}{2}$
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025104
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(1) $2\sqrt{6}$; (2) $(\dfrac{\pi}{6},\dfrac{\pi}{4})$
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025105
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(1) $a=-\dfrac{\pi}{6}$, $b=0$, $f(x)=2\sin (2x+\dfrac{\pi}{3})$, 最小正周期为$\pi$, 对称轴为$x=\dfrac{k\pi}{2}+\dfrac{\pi}{12}$, $k\in \mathbf{Z}$; (2) $[1,2)$; (3) $\dfrac{5\pi}{12}$
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032895
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(1) \textcircled{1}是``含谷函数'', 谷点是$0$, \textcircled{2} 不是含谷函数, 理由略; (2) $(2,18)$; (3) $\sqrt{2}$
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