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- 医师定期考核
答案:
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1.)y' y= e
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2.e>e(x≠y
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3.If and only if x=ln(y), y=e^x.
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4.Vx(7E(x,o)> ( y(E(y, g(x))A ze(z, g(x))> E(y, z))
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5.If X and Y are random variables with E(X) =5 and E(Y) = 8, then E(2X + 3Y) is:
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6.e-e★(5)y=e e
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7.设随机变量X与Y相互独立,且E(X)与E(Y )存在,记U = max(X, Y), V = min(X, Y ),则 E(UV ) =( ).
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8.y y y y y y y y y y y
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9.E(Y X1, ..., Xk. = Pr(Y = 1 X1,..., Xk. means that
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10.谁有y=e^xy=^-x和y=lnx的图像