How to graph the following

y=sin(cosx)
y=cos(cosx)
y=tan(sinx)
y=log(cosx) {log to the base e}

use a function plotter like: http://www.onlinefunctiongrapher.com/
links to your graphs:
sin(cos(x)) : http://www.onlinefunctiongrapher.com/?f=…
cos(cos(x)) : http://www.onlinefunctiongrapher.com/?f=…
tan(sin(x)) : http://www.onlinefunctiongrapher.com/?f=…
ln(cos(x)) : http://www.onlinefunctiongrapher.com/?f=…

* ln = log to the base of e

use "MATLAB"