Find 
using the appropriate Chain Rule for 
where 
, and 
.
Definitions:
Hot Tub
A large tub filled with hot water and used for relaxation or hydrotherapy, often equipped with jets for massage.
Tinker Creek
A stream in Virginia, notably written about by Annie Dillard in her work "Pilgrim at Tinker Creek," exploring nature and life.
Shade Trees
Large trees planted specifically to provide shade and reduce heat in surrounding areas, often enhancing comfort and energy efficiency.
Sand Dunes
Natural accumulations of sand typically found in deserts and on beaches, shaped by the wind or water flow.
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