You are studying for your final sem of
the semester, Up to this point, you
received 3 enam sxes of 2, 2, and
90%, To receive a grade of B in the days,
you must have an average enam score
between 80% and 384 for all , sans
including the final,

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.