Cos 70° sin 10° – sin 70° cos 10°
Jawaban Terkonfirmasi
T12igOnoMetrI
cos 70° sin 10° – sin 70° cos 10°
= – (sin 70 cos 10 – cos 70 sin 10)
= – sin (70 – 10)°
= – 1/2 √3
Cos 70° sin 10° – sin 70° cos 10°
T12igOnoMetrI
cos 70° sin 10° – sin 70° cos 10°
= – (sin 70 cos 10 – cos 70 sin 10)
= – sin (70 – 10)°
= – 1/2 √3