sin5per 6 v +cos 5per4 v

Dirubah ke derajat :
[tex] \sin5 \div 6\pi \: = \: 5 \div 6\pi \times 180 \div \pi = 15[/tex]
[tex] \cos \: 5 \div 4\pi = 5 \div 4\pi \times 180 \div \pi = 225[/tex]
Sin 15° + Cos 225°
[tex]0.25 \: + \: - 1 \div 2 \sqrt{2} [/tex]
= 0.457