Aco. 1 (sample), P. a ad 1 (10 points). Find dr Jo (1+ (2) In(1 + (2) z. 2t 6 (20 points). Find the area enclosed by the graph of y = 2(1 -I) 2- 21 + 72, the z-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: 4wv 7 (sample), p. 4. Evaluate the definite integral. 3. Find the indefinite integral. (i) (15 points) (* teeter ) dz. (i) (15 points) dx (1 + x) In(1 + 2 ) Answer: Answer (ii) (15 points) 372 - 2 - 978 ) dx. (ii) (20 points) 22 + 1 (1 + 3x + 13)2 dr. Answer: Answer: 5 (20 points). Find the area bounded by y = VI, y = I - 6 and the z-axis