Question
From a point 30 m away from the base of a building, the
angle of elevation to the top of the building is 60°. Find the height of the building.Solution
Height = distance × tan(angle) = distance × tan60 = 30 × √3 = 30√3 m. height = 30√3 m
If x² – 6x + m > 0 for all real x, find m.
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