User login

2 + 2 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

\(\int {{{\sin }^2}xdx} = ?\)

\(\frac{1}{2}\left( {x + \sin 2x} \right) + c\)

\(\frac{1}{2}\left( {x - \frac{{\sin 2x}}{2}} \right) + c\)

\(\frac{1}{2}\left( {x - \sin 2x} \right) + c\)

\(\frac{1}{2}\left( {x + \frac{{\sin 2x}}{2}} \right) + c\)