patulong po i solve tong mga problems (Integral Calculus)

Number 1
(w5)dww2+5

      =(ww2+55w2+5)dw

      =122wdww2+55dww2+(5)2

      =122wdww2+55dww2+(5)2

      =12ln(w2+5)55arctan(w5)+C

      =12ln(w2+5)5arctan(w5)+C