InterviewSolution
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InterviewSolution
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A passenger is travelling in an airplane. An airplane isflying at a height of 3000 m above the level ground. He observes that the angle of depressionfrom the plane to the foot of a tree is a, such that cos3a = sin(120° - 4a). Find the distance thatthe airplane must fly to be directly above the tree. |
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Answer» A passenger is travelling in an airplane. An airplane is flying at a height of 3000 m above the level ground. He observes that the angle of depression from the plane to the foot of a tree is a, such that cos3a = sin(120° - 4a). Find the distance that the airplane must fly to be directly above the tree. |
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