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The angle of elevation of the top of a hill from a point is α. After walking b towards the top up of a slope inclined at an angle β to the horizon, the angle of elevation of the top becomes γ. Then the height of hill is |
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Answer» The angle of elevation of the top of a hill from a point is α. After walking b towards the top up of a slope inclined at an angle β to the horizon, the angle of elevation of the top becomes γ. Then the height of hill is |
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