Function
Scope

The denominator is not zero

Under the sign of the root of an even degree can be only integral expression

Under the sign of the logarithm can be only datni expression

At the base of the logarithm may stand for positive expression, not equal to zero
Under the sign of the tangent can be just expression that is not equal to the
whole

Under the sign of cotangent can be just expression that is not equal to the
whole


Under the sign of the arc sine and the arc cosine can be just an expression, a module is less than or equal to one

— natural
— any,


- an integral number or zero

not a positive integer 
— WMP not an integer 




