Soal Jika sin a=(9)/(15), maka nilai dari cot alpha adaluh ...
Prove that cot alpha - tan alpha =2 cot 2 alpha.
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A stationary balloon is observed from 3 points A, B and C on the plane ground and is found that its angle of elevation from each point is alpha . If ABC =
Soal Bentuk sedemana dari (tan alpha-cot alpha)/(sec alpha-cosec alpha) adalah ...