The uploaded image contains mathematical problems, including tasks to calculate gradients, directional derivatives, extrema of functions, and indefinite integrals.

Please let me know which problem you would like to focus on! For instance:

• Gradient and directional derivative problems (e.g., #95–100).
• Extremum analysis of functions (e.g., #101–105).
• Indefinite integral evaluation (e.g., #106–109).

Feel free to specify, and I will solve and explain in detail!