Nilai sin 165 derJat
Matematika
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Pertanyaan
Nilai sin 165 derJat
2 Jawaban
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1. Jawaban fawya
Sin 165° = 0.258819045 -
2. Jawaban Eviraamanda10
Sin165=sin(120+45)
=sin120cos45+cos120+sin45
=1/2√3 x 1/2√2 + -1/2 x 1/2√2
=1/4√6 - 1/4√2
=√6-√2/4