MuhammmadRizky
walah ak pakai kalkulator sin cos yang salah, https://www.google.co.id/search?dcr=0&ei=dluVWqqrJ8W-0AT5gZqYDw&q=-+tan+300&oq=-+tan+300&gs_l=psy-ab.3..0i7i30k1l10.9688.10060.0.10558.2.2.0.0.0.0.242.480.2-2.2.0....0...1c.1.64.psy-ab..0.1.236....0.IY_82aepldo
MuhammmadRizky
sipp pak (Y) makasih yah pak udah bantu jg jelasinny :v
Verified answer
Kelas 10 MatematikaBab Trigonometri
1] sin (-60°)
= - sin 60°
= -1/2 √3
2] cos (-40°)
= cos 40°
= 0,766
3] tan (-300°)
= - tan 300°
= - (-√3)
= √3
4] sec (-70°)
= sec 70°
= 2,92
5] cosec (-245°)
= - cosec 245°
= - (-1,1)
= 1,1