The area between the curve y=sin2x, the x-axis between 0 and 1 and the line x=1 is rotated through 360 degrees about the x-axis.

a) Sketch the area described.

b) Write down an integral expression for the volume of the solid formed.

c) Find this volume.

That's the whole question, I provided a,b, and c for completeness. What I need some explanation on is with regards to the line x=1.

I drew 2 functions on the same set of axes: y=sin (x+pi/4) and x=1...

Is that right?