#### The integral  is equal to: Option 1) Option 2) Option 3) Option 4)     where C is an arbitrary constant.

As learnt in concept

Integration by substitution -

The functions when on substitution of the variable of integration to some quantity gives any one of standard formulas.

- wherein

 Since  all variables must be converted into single variable ,

Differentiating,

Option 1)

Incorrect option

Option 2)

Correct option

Option 3)

Incorrect option

Option 4)

where C is an arbitrary constant.

Incorrect option