Use the figure below to find the exact value of the given trigonometric expression. 
Definitions:
Corn
A cereal crop that is grown extensively for food, animal feed, and for use in various industrial products.
Burning Biomass
The combustion of organic materials, such as wood, agricultural crops, or waste, to generate energy.
Carbon Dioxide
A colorless, odorless gas produced by burning carbon and organic compounds and by respiration.
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