F(x) = cos² x – 2 cos x
Jawaban:
turunan fungsi =y' y= cos x, y' = – sin x
soal
f(x) = (sin² x + cos²x) + 2cos x
f(x)= 1+ 2 cos x
f'(x) = – 2 sin x
f'(π/3) = – 2 sin (1/3) = – 2 sin 60
f'(π/3) = -2 (¹/₂ √3)
f'(π/3) = -√3
F(x) = cos² x – 2 cos x
Jawaban:
turunan fungsi =y' y= cos x, y' = – sin x
f(x) = (sin² x + cos²x) + 2cos x
f(x)= 1+ 2 cos x
f'(x) = – 2 sin x
f'(π/3) = – 2 sin (1/3) = – 2 sin 60
f'(π/3) = -2 (¹/₂ √3)
f'(π/3) = -√3