November 2019 1 105 Report
Quiz Trigonometry

No1.
Buktikan identitas trigonometri berikut.
 \tan (A - B) = \dfrac{\sin 2A - \sin 2B} {\cos 2A + \cos 2B}

No2.
Buktikan identitas trigonometri berikut.
 \cot 2A = \dfrac{\sin A - \sin 3A} {\cos 3A - \cos A}
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