Pertanyaan

Nilai cos 36 0 ∘ + tan 31 5 ∘ − sin 18 0 ∘ = ... .

Nilai $cos 36 0^{\circ} + tan 31 5^{\circ} - sin 18 0^{\circ} = ...$ .

S. Nur

Master Teacher

Jawaban terverifikasi

Jawaban

diperoleh nilai .

diperoleh nilai cos space 360 degree plus tan space 315 degree minus sin space 180 degree equals 0

Pembahasan

Ingat nilai sudut istimewa trigonometri. Pehatikan perhitungan berikut. Jadi, diperoleh nilai .

Ingat nilai sudut istimewa trigonometri.

table attributes columnalign right center left columnspacing 2px end attributes row cell cos space 360 degree end cell equals 1 row cell tan space 315 degree end cell equals cell negative 1 end cell row cell sin space 180 degree end cell equals 0 end table

Pehatikan perhitungan berikut.

table attributes columnalign right center left columnspacing 2px end attributes row cell cos space 360 degree plus tan space 315 degree minus sin space 180 degree end cell equals cell 1 plus open parentheses negative 1 close parentheses minus 0 end cell row blank equals cell 1 minus 1 end cell row blank equals 0 end table

Jadi, diperoleh nilai cos space 360 degree plus tan space 315 degree minus sin space 180 degree equals 0 .