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- 企业事业单位考试
答案:
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1.f(r) f(x) f"(x)f'(r)3(x)
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2.f(x) f(x)f"(r)f'(x) f(r)
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3.f() f() f"(x)3(1""(r)f(x)))))
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4.f(r) f(r)f"()f'(x) f()
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5.f(x) (x)f"(r)33(x)
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6.P(x, f(A))∨Q(x)和 ¬Q(f(y))∨R(z)的消解式为A.P(x,f(A))∨R(z)B.P(x,f(A))∨Q(x)∨R(z), σ = {f(y)/x}C.P(f(y),f(A))∨
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7.【单选题】P(x, f(A))∨Q(x)和 ¬Q(f(y))∨R(z)的消解式为A. P(x,f(A))∨R(z) B. P(x,f(A))∨Q(x)∨R(z), σ = {f(y)/x} C.
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8.设函数 f:R→R,f(x)=x+3,g:R→R,g(x)=2x+1,则 (g◦f)(x) =( )。
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9.B f(r) g(a)> f(a)g(.)C f(r)g(x)> f(h)g(b)D f( x)g(x) f(a)g(a)
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10.8.设f(x)={x x8则f(-x)等于≤(x2 x),r>0.B f(-)C≤0<0A、f(-r)=B、x≥0