Jawaban:
sin 10° + sin 20° + sin 30° + ..... + sin 360° = 0
Penjelasan dengan langkah-langkah:
Trigonometri
sin 10° + sin 20° + sin 30° + ..... + sin 360°
= sin 10° + sin 20° + sin 30° + ..... + sin 340° + sin 350° + sin 360°
= sin 10° + sin 20° + sin 30° + ..... + sin (360-20)° + sin (360-10)° + sin 360°
.
=> sifat sinus [ sin (360-x) = - sin x ]
maka
= sin 10° - sin 10° + sin 20° - sin 20° + ........ + sin 360°
= 0 + 0 + .... + 0
= 0
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Verified answer
Jawaban:
sin 10° + sin 20° + sin 30° + ..... + sin 360° = 0
Penjelasan dengan langkah-langkah:
Trigonometri
sin 10° + sin 20° + sin 30° + ..... + sin 360°
= sin 10° + sin 20° + sin 30° + ..... + sin 340° + sin 350° + sin 360°
= sin 10° + sin 20° + sin 30° + ..... + sin (360-20)° + sin (360-10)° + sin 360°
.
=> sifat sinus [ sin (360-x) = - sin x ]
.
maka
= sin 10° - sin 10° + sin 20° - sin 20° + ........ + sin 360°
= 0 + 0 + .... + 0
= 0