Buktikan. tan(1/2(x+y)) tan(1/2(x-y))=-(cos x-cos y)/(cos
Saluran Edukasion 2024-01-08T20:12:00
Buktikan. tan(1/2(x+y)) tan(1/2(x-y))=-(cos x-cos y)/(cos x+cos y)
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Buktikan. tan(1/2(x+y)) tan(1/2(x-y))=-(cos x-cos y)/(cos x+cos y)