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抛物线y=x^2在哪一点处切线的倾角为45°()A.(0,0)B.(1/2,1/4)C.(1/4,2)D.(1,1)
抛物线y=x^2在哪一点处切线的倾角为45°()
A.(0,0)
B.(1/2,1/4)
C.(1/4,2)
D.(1,1)
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抛物线y=x^2在哪一点处切线的倾角为45°()
A.(0,0)
B.(1/2,1/4)
C.(1/4,2)
D.(1,1)
过曲线y=2x2-1上一点P(1,1)处的切线的斜率是() (A)4 (B)3 (C)1 (D)-4