1-16 Evaluate the line integral, where C is the given curve.
1. ∫_C y ds, C: x = t², y = 2t, 0 ≤ t ≤ 3
2. ∫_C (x/y) ds, C: x = t³, y = t⁴, 1 ≤ t ≤ 2
3. ∫_C xy⁴ ds, C is the right half of the circle x² + y² = 16
4. ∫_C xeʸ ds, C is the line segment from (2, 0) to (5, 4)
5. ∫_C (x²y + sin x) dy, C is the arc of the parabola y = x² from (0, 0) to (π, π²)
6. ∫_C eˣ dx, C is the arc of the curve x = y³ from (-1, -1) to (1, 1)
7. ∫_C (x + 2y) dx + x² dy, C consists of line segments from (0, 0) to (2, 1) and from (2, 1) to (3, 0)
8. ∫_C x² dx + y² dy, C consists of the arc of the circle x² + y² = 4 from (2, 0) to (0, 2) followed by the line segment from (0, 2) to (4, 3)
9. ∫_C x²y ds, C: x = cos t, y = sin t, z = t, 0 ≤ t ≤ π/2
10. ∫_C y²z ds, C is the line segment from (3, 1, 2) to (1, 2, 5)
11. ∫_C xeʸᶻ ds, C is the line segment from (0, 0, 0) to (1, 2, 3)
12. ∫_C (x² + y² + z²) ds, C: x = t, y = cos 2t, z = sin 2t, 0 ≤ t ≤ 2π
13. ∫_C xyeʸᶻ dy, C: x = t, y = t², z = t³, 0 ≤ t ≤ 1
14. ∫_C y dx + z dy + x dz, C: x = ∑t, y = t, z = t², 1 ≤ t ≤ 4
15. ∫_C z² dx + x² dy + y² dz, C is the line segment from (1, 0, 0) to (4, 1, 2)
16. ∫_C (y + z) dx + (x + z) dy + (x + y) dz, C consists of line segments from (0, 0, 0) to (1, 0, 1) and from (1, 0, 1) to (0, 1, 2)