Calculus

in the book calculus early transcendentals 8th edition. by james stewart.

I want to get the following problems done using MATHMATICA and send it to me as a MATHMATICA note 

7.7# 3

7.8 #15, 45

6.1# 31, 41

6.2 #37, 46

6.3# 25, 35

I NEED A mathmatica doc