1.
is equal to
2.
The value of the integral is
3.
is equal to
4.
is equal to
5.
The value of which does not satisfy the equation
\int_{\pi /2}^{a}  x dx=sin 2\alpha, is 
6.
If and , then the value of , is
7.
If and , then is equal to
8.
The value of is ( stands for greatest integer less than or equal to )
9.
Let where and for , then
10.
Let , then value of is