Due date: Wednesday, February 11, 2026.

Sums and Sum Notation

• 2.3.26 b,
• 2.3.27 b,
• 2.3.28 a,
• 2.3.31 a, d, e, pages 46-52.

Triangular Sums

• 2.3.32 b, c, e,
• 2.3.35 b, c, pages 46-52.

Geometric and Harmonic Sums

• 2.3.36 b,
• 2.3.42 a,
• 2.3.43 b (use Euler's approximation),
• 2.3.44 a,
• 2.3.46 b, pages 49-52.

Factorials

• 2.4.10 a,
• 2.4.13 b,
  pages 55-56.

Remainders in Integer Division

• 2.5.8,
• 2.5.10,
  page 62.