f(x) = x + sin|x|
a)sketch f(x) in the interval -2pi <= x <= 2pi with your calculation.
b)find the tangent to f(x) at x = pi
c)there is a circle C with centre P(x,y).C always touch f(x) at point x with
the radius which always equal to the value of |f(x)| at point x.Find the locus of P.
maths
2007-04-02 12:12 am
回答 (1)
2007-04-05 1:47 am
✔ 最佳答案
msn 講左大部份過程比你知@@，所以只打答案出來a) msn 畫左比你睇
b) y=pi
c) y=0 and y= 2x + 2sin|x|
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