$$\int\limits_0^{10\pi } {\left| {\sin x} \right|dx} $$ is

$$\int\limits_0^2 {\left[ {{x^2}} \right]dx} $$ is

$$A$$ and $$B$$ are events such that $$P\left( {A \cup B} \right) = 3/4$$,$$P\left( {A \cap B} \right) = 1/4,$$
$$P\left( {\overline A } \right) = 2/3$$ then $$P\left( {\overline A \cap B} \right)$$ is :

The solution of the equation $$\,{{{d^2}y} \over {d{x^2}}} = {e^{ - 2x}}$$