porfavooor!/pleasssse!
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pardoname, yo se un poco espanol.
∫x cos x/2 dx=∫Udv
cuando
U = x , dv = cos(x/2)sx
du = dx , V = 2sin(x/2)
∫Udv = UV - ∫Vdu
=2x*sin(x/2) - ∫2sin(x/2)dx
=2x*sin(x/2) + 4cos(x/2)) + c
∫x cos x/2 dx=∫Udv
cuando
U = x , dv = cos(x/2)sx
du = dx , V = 2sin(x/2)
∫Udv = UV - ∫Vdu
=2x*sin(x/2) - ∫2sin(x/2)dx
=2x*sin(x/2) + 4cos(x/2)) + c