Height and DistanceEasy
Question
AB is a vertical pole with B at the ground level and A at the top. A man finds that the angle of elevation of the point A from a certain point C on the ground is 60o. He moves away from the pole along the line BC to a point D such that CD = 7 m. From D the angle of elevation of the point A is 45o. Then the height of the pole is
Options
A.
B.0
C.1
D.
Solution
A = {4, 5, 6} , B = {1, 2, 3, 4} .
Obviously P (A ∪ B) = 1.
Obviously P (A ∪ B) = 1.
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