Question

Tolong Dijawab soal ada di gambar​

Answer 1

Jawab:

Penjelasan dengan langkah-langkah:

sin 120 = sin (180 - 60)

= sin 60

= ½ V3

V = akar

cos 210 = cos (180 + 30)

= - cos 30

= - ½ V3



cos 330 = cos (360 - 30)

= cos 30

= ½ V3

tan 60 = V3

(sin 120 - cos 210)/(cos 330 - tan 60) =

(½V3 - (-½V3))/(½V3 - V3) = (½V3 + ½V3)/(½V3 - V3)

= V3 / (-½V3)

= - 2.

Answer 2

Materi : Trigonometri

( sin 120 - cos 210 )/( cos 330 - tan 60 )

= ( √3/2 - [ - √3/2 ] )/( √3/2 - √3/2 ÷ ½ )

= ( √3/2 + √3/2 )/( √3/2 - √3 )

= √3/( - √3/2 )

= √3 × ( - 2/√3 )

= -2

Semoga bisa membantu

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