已知f(2x)=4x2−2xf(2x)=4x^{2}-2xf(2x)=4x2−2x,则f(x)=f(x)=f(x)=( ).
求曲线{y=sintx=t2\begin{cases}y = \sin t\\x = t^{2}\end{cases}{y=sintx=t2(ttt为参数)在t=π3t = \dfrac{\pi}{3}t=3π对应点处的切线方程.
y=5−6xy = 5 - 6xy=5−6x的反函数为( ).
(A)y=5−6xy = 5 - 6xy=5−6x
(B)y=5+6xy = 5 + 6xy=5+6x
(C)y=5−x6y = \dfrac{5 - x}{6}y=65−x
(D)y=5+x6y = \dfrac{5 + x}{6}y=65+x
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