[填空题]
Consider the function f+ki4p2v4 z qam .lgvjaj* rkjql54/ r+(x)=$\frac{1}{2x}$ + $\frac{x^4}{8}$ - 1.625 , x≠=0.
1.Find f′(x)=-$\frac{1}{ax^2}$+$\frac{x^b}{c}$.
a= , b= , c= .
2.Calculate f(1)=- .
3.Find f'(1)= .
4.Sketch the graph of f(x), for −3≤x≤3 and −3≤y≤7.
5.Draw the tangent line, A, to the graph of y=f(x) at the point x=1.
6.Find the equation of the tangent line A.
7.The graph of y=f(x) and the tangent line A have a second intersection at point K. Use your graphic display calculator to find the x-coordinate of K.
x$_k$=- .
