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The top of a \(15 \ m\) high tower makes an angle of elevation of \(60^{\circ}\) with the bottom of an electronic pole and angle of elevation of \(30^{\circ}\) with the top of the pole. What is the height of the electric pole?
Answer:
The height of the electric pole \(=\)
(Note: Enter the number in the first box and the unit (short form) in the second box.)
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