Question

Lim cos 2x-1
x->0 ------
x kuadrat



tolong bantu

Answer 1

Lim  (cos (2x - 1)) / x²
x->0
= lim  (- 2 sin (2x - 1)) / 2x
  x->0
= lim (- 4 cos (2x - 1))/2
x->0
= - 2 cos (-1)
= - 2 cos 1