Please provide a neat solution. You may use a calculator technique but explain the concepts or formula you will use. Thank you.

Items 1-11:

1. Find the area in the first quadrant bounded by the parabola y' = 4x, x = 1 and x = 3. A 9.595 C. 5.955 B. 9.955 D. 5.505 2. Find the ] x sin x cos x dx A % x cos x + 1/8 sin x + C B. - 74 x cos 2x + 1/8 sin 2x + C C. % x'sinx + 1/8 sin x + C D. - %% x cos 2x + 1/8 sin 2x + C 3. Compute the following limit x +4 A 1 B. 0 C. 2 D. infinite 4. Differentiate y = x2 cos (2x) A - 2x2 sin (2x) + 2x cos (2x) - 2x2 cos (2x) + sin (2x) . 2x2 sin (2x) - 2x cos(2x) D. 2x2 cos (2x) + 2x sin (2x) 5. The general second degree equation has the form Ax + Bxy + Cy + Dx + By + F = 0. If B2-4AC