Two ships are sailing in the sea on the two sides of a lighthouse. The angle of elevation of the top of the lighth is observed from the ships are 30° and 45° respectively. If the lighthouse is 100 m high, the distance between two ships is: A. 173 m B. 200 m C. 273 m D. 300 m

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A: Use cosine formula.

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A: SOLUTION-

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A:

Q: Two tugboats that are a = 125 ft apart pull a barge, as shown. If the length of one cable is b = 210…

A:

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