1.
If in a then angle is equal to
2.
holds for
3.
If and are the roots of the equation then
4.
If , then is equal to
5.
is equal to
6.
If we consider only the principle value of the inverse trigonometric functions, then the value of is
7.
If then the value of is
8.
If , then is equal to
9.
If then value of is
10.
The value of is equal to