Question

Turunan pertama x² cos x + x cos x+ x sin x

help me guys

Answer 1

Verified answer

Jawab

y = uv
y' = u'v + uv'

y = x² cos x + x cos x  + x  sin x

y' = (2x cos x  -  x² sin x) + (cos x -  x sin  x) + (sin x +  x cos x)

y' = 2x cos x  + cos x + x cos x  - x² sin x - x sin x   + sin x

y' = (3x + 1) cos x  -  (x² +x - 1) sin x