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Menampilkan postingan dengan label law of cosine
Trigonometry : Exercise (11.3) - Problem 15

Trigonometry : Exercise (11.3) - Problem 15

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A ship leaves harbour on a course N 72° E and after traveling for 50 metres, changes course to 108°… Read more » Trigonometry : Exercise (11.3) - Problem 15
Exercise (11.3)-Problem 17

Exercise (11.3)-Problem 17

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Two runners start from the same point at 12:00 noon, one of them heading north at 6 mph and the oth… Read more » Exercise (11.3)-Problem 17
Law of Cosines and to Find Extremum by Completing Square

Law of Cosines and to Find Extremum by Completing Square

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In $ \displaystyle \Delta ABC$, $ \displaystyle AB=(5-x)$ cm, $ \displaystyle BC=(4+x)$ cm, $ \dis… Read more » Law of Cosines and to Find Extremum by Completing Square