Answer:
2.33944954128
Step-by-step explanation:

Actually Welcome to the Concept of the Differential Calculus.
Since, we know this is a definite calculus,
thus we get here as, by using the Chain Rule.
Answer:8 I think, sorry it it is wrong
Step-by-step explanation:
A solid geometric figure whose two end faces are similar, equal, and parallel rectilinear figures, and whose sides are parallelograms.
hope that helps