Tolonggg yaa nmr 3 yang bisa mtk ini bab turunan fungsi trigonometri:(

Turunan Fungsi Aljabar.
Kelompok wajib kelas XI kurikulum 2013 revisi 2016.

f(x) = [2x + 1 / (2x)]²
f'(x) = 2 [2x + 1 / (2x)] [2x + 1/2 d/dx (x⁻¹)]
       = 2 [2x + 1 / (2x)] [2x + 1/2 (-1)x⁻²]
       = 2 [2x + 1 / (2x)] [2x - 1 / (2x²)]
       = 2 [4x - 1 / (4x³)]
       = 8x - 1 / (2x³)
f'(2) = 8(2) - 1 / [2(2)³] = 255/16