Tolong dong jawab no 2 aja.​

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Tolong dong jawab no 2 aja.​

Tolong dong jawab no 2 aja.​

mudah-mudahan jawaban ini membantu

Gambar Jawaban

Jawaban:

cos (x – 30)° = sin x

cos x cos 30° + sin x sin 30° = sin x

 frac{1}{2} sqrt{3} cos(x) + frac{1}{2} sin(x) = sin(x)

 frac{1}{2} sqrt{3} cos(x) = sin(x) - frac{1}{2} sin(x)

 frac{ frac{1}{2} sqrt{3} }{ frac{1}{2} } = frac{ sin(x) }{ cos(x) }

 sqrt{3} = frac{ sin(x) }{ cos(x) }

tan x = √3 (terbukti)