Question: A boat approaches a 50-ft-high lighthouse whose base is at sea level. Let d be the distance between the boat and the base of the

A boat approaches a 50-ft-high lighthouse whose base is at sea level. Let d be the distance between the boat and the base of the lighthouse. Let L be the distance between the boat and the top of the lighthouse. Let θ be the angle of elevation between the boat and the top of the lighthouse.

a. Express d as a function of θ.

b. Express L as a function of θ.

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