Nilai dari sin 23R + sin 73R
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[tex] = \sin(23r) + \sin(73r) [/tex]
[tex] = 2 \sin( \frac{23r + 73r}{2} ) \cos( \frac{23r - 73r}{2} ) [/tex]
[tex] = 2 \sin( \frac{96r}{2} ) \cos( \frac{ - 50r}{2} ) [/tex]
[tex] = 2 \sin(48r) \cos( - 25r) [/tex]
[tex] = 2 \sin(48r) \cos(50r) [/tex]
[answer.2.content]
