Nilai ∫ xsin(x² + 1)dx =
Misal u = x² + 1
du = 2xdx
xdx = 1/2 du
1/2∫sin udu = -1/2cosu + c = -1/2cos(x² + 1) + C
Kabar Masyarakat, Gaya Santai
Nilai ∫ xsin(x² + 1)dx =
Misal u = x² + 1
du = 2xdx
xdx = 1/2 du
1/2∫sin udu = -1/2cosu + c = -1/2cos(x² + 1) + C