1 (10 points). Find ar Jo (1 + (?) In(1 + (2) de. 2t 2(1 - 1) 6 (20 points). Find the area enclosed by the graph of y = 2- 2 472: the I-axis, and Answer: the y-axis. Answer 2 (20 points). The marginal revenue for a certain product is given by $ = 200/(q +2)?. Find the demand function for this product. Answer .. ..- s we joample), p 4. Evaluate the definite integral. 3. Find the indefinite integral. (i) (15 points) (2" + e ter ) dz. (i) (15 points) dx (1 + x) In(1 + 2) Answer: Answer (ii) (15 points) 372 - 72 - 728 dz. (#) (20 points) (+ 3x + 23)3 dz. Answer: Answer: 5 (20 points). Find the area bounded by y = VI, y = x - 6 and the z-axis