Nilai, sin 150\xb0 + sin 120\xb0, per, cos 210\xba 2013 cos 300\xb0, …

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Nilai
sin 150° + sin 120°
per
cos 210º – cos 300°
…​

Jawaban:

-1

Penjelasan dengan langkah-langkah:

penjelasan ada di gambar


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