di ketahui f : x cos x . hitunglah nilai fungsi jika nilai x= 30°
![]()
Penjelasan dengan langkah-langkah:
30°=π/6
[tex]f(x) = xcos(x)[/tex]
[tex]f( \frac{\pi}{6} ) = \frac{\pi}{6} \cos( \frac{\pi}{6} ) [/tex]
[tex]f( \frac{\pi}{6} ) = \frac{\pi}{6} \times \frac{ \sqrt{3} }{2} [/tex]
[tex]f( \frac{\pi}{6} ) = \frac{ \pi\sqrt{3}\ }{12} [/tex]
[answer.2.content]
