=( x+ 1)(x^(- 1/2)+2)

=x^( 1/2)+x^(- 1/2)+2(x+ 1)

so:y^'=〖 1/2 x〗^(- 1/2)-〖 1/2 x〗^(-3/2)+2

2: y' = 7cosx-sinx-x (-2)

Three: make t=sinx

So: y=sint

So: y' = Sint' t'

=costcosx

=cossinxcosx