Problems from Stewart unless numbered "X", "XX", etc.

142W  HW#6 Due beginning of class, Thursday, Feb 27.


[8.1] Length of curves (graphs).
	12. (Look in the back of the book for the antiderivative
	     if you don't know it.)
	     And recall that sin(Pi/6)=1/2, cos(Pi/6)=sqrt(3)/2,
	     and for Pi/3 it's vice versa.

[8.2] Surface area of surfaces of revolution
	8.  
	    This is fairly laborious, but just keep plugging away.
	    Note that the thing under the square root is the
            square of something. 
            Also, you may need integration by parts to deal with a couple
            of the terms.

	27. [Gabriel's Horn]
	    Use a comparison to prove the result.