the more i think about it, the less sense it makes:
if you were a mediocre calculus student, then why wouldn't you invest in a complete solutions manual for the textbook of your course?
even if you copied all the answers, the percentage of exam problems similar to textbook problems is rather high .. enough, say, for a C grade or probably a B.
after all, solutions manuals are perfectly legal products to buy. the only setback I can think of is the additional cost.
sometimes i just don't understand students.